{"title":"All","description":"","products":[{"product_id":"981-gt4-spyder-race-headers-425hp","title":"Dundon 981 GT4 Clubsport Race Headers","description":"\u003cp\u003eDundon 981 GT4 Race Headers provide substantial gains in torque and horsepower throughout the rev range. They are a race system so are for track or off-road use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRace Headers are for Non USA or racing vehicles in the US. \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eAll Dundon headers are made with 321SS, the advantages of this are numerous and include, better fitment, higher heat tolerance, superior resistance to exhaust gas corrosion and a lifetime structural warranty to the original purchaser.\u003c\/p\u003e\u003cp\u003eThe headers attach to the factory PSE muffler and are quiet with no drone at cruise, but put your foot down and they're all kinds of flat six glory.\u003c\/p\u003e\u003cp\u003eDundon Headers are specifically designed for each vehicle and engine.  Unlike our competition that uses a one size fits all, we tailor each system to the unique needs of each engine.\u003c\/p\u003e\u003cp\u003eDyno showing Stock GT4 vs Dundon GT4\/Spyder Race Headers.\u003c\/p\u003e\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/GT4_Prod_StockTune_bc97effb-5f65-46ef-8fc9-83d0384f6ad2_480x480.jpg?v=1582133576\" alt=\"stock tune\"\u003e\u003c\/figure\u003e\u003cp\u003e\u003cstrong\u003eGains Over Stock.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e3600 RPM: +42 wtq\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e5000 RPM: +36 wtq, +34whp\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e5800 RPM: +15 wtq, +16whp\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e6500 RPM: +28whp\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e7000 RPM: +30whp\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e7500 RPM: +41whp\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eOur dyno read the stock car at 330.8 whp at 7400, Porsche rates the car at 385bhp at 7400, this is 14.1% loss with our Dynapack 4000 hub dyno running the car in Rolling Road mode using the factory PIWIS tools.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDundon Race Header equipped GT4 is now at: 426BHP\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eGT4 Tunnel video\u003c\/p\u003e\u003cp\u003e\u003ca href=\"https:\/\/youtu.be\/OJG-wdxjL0g\"\u003e\u003cstrong\u003ehttps:\/\/youtu.be\/OJG-wdxjL0g\u003c\/strong\u003e\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003eDundon 991 GT3 Stage 2 chasing GT4 Stage 2\u003cbr\u003e\u003ca href=\"https:\/\/youtu.be\/XpC3713d8wI\"\u003ehttps:\/\/youtu.be\/XpC3713d8wI\u003c\/a\u003e\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10719359336484,"sku":"100-30304","price":6195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/981-GT4-Clubsport-Race-Headers-1x1.jpg?v=1789767155"},{"product_id":"981-gt4spyder-cobb-accessport-with-dundon-pro-tune","title":"981 GT4 Cobb Accessport with Dundon Pro Tune","description":"\u003cp\u003eIncludes: Cobb Accessport and Dundon ProTune.\u003c\/p\u003e\n\u003cp\u003eDundon Motorsports is happy to provide the Cobb Accessport for the 981 GT4\/Spyder.  We're Cobb Pro Tuners and have developed a great tune for the Dundon GT4\/Spyder Race Headers.\u003c\/p\u003e\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/GT4_Race_ProTune1_480x480.jpg?v=1582134211\" alt=\"GT4 Dundon Pro Tune\"\u003e\u003c\/figure\u003e\u003cp\u003e\u003cstrong\u003eGains Over Stock including GT4\/Spyder Race Headers and Dundon Pro Tune:\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e3600 RPM: +50 wtq +32whp\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e5000 RPM: +55 wtq, +52whp\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e5800 RPM: +24 wtq, +26whp\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e6500 RPM: +30 wtq, +36whp\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e7500 RPM: +30 wtq, +43whp\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e377.1whp on our dyno works out to 438.8 BHP\u003c\/strong\u003e\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":40133531893935,"sku":"901-AP3-POR-007-PT","price":2390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/981-gt4spyder-cobb-accessport-with-dundon-pro-tune-428436.jpg?v=1627084801"},{"product_id":"991-cantrell-bolt-in-roll-bar","title":"991 Cantrell Bolt-In Roll Bar","description":"Don’t fall for the less expensive bars on the market. They don’t match our well thought-out design and construction.\n\u003cp\u003eAs with all Cantrell Motorsports half cages, our main goal is to provide safety and superior fit and finish. The rear mounts bolt to the upper rear shock tower factory roll bar provision providing the safest possible mounting point. The main hoop is mounted to the steel longitudinal frame structure which spans the width of the vehicle just like the factory bar. We designed this bracket to wrap around the steel frame using all OEM attachment points providing the strongest design on the market without any drilling or modification other than very minor interior trimming to the side panel just like the factory does. The GT3 carpet already has a main hoop cutout for a roll bar and our bar fits that cutout perfectly.\n\u003c\/p\u003e\u003cp\u003eOnly weighs 51.4 lbs.\n1.75″ X .095 4130 Chromoly roll bar main hoop.\n1.75 X .095 4130 Chromoly diagonal and rear stays.\nOne piece main hoop and rear stays.\nLaser cut mounting plates.\nJourneyman Tig welded.\nA true bolt in roll bar. Not just a harness bar which provides no safety features. It’s more than just a place to mount your belts!\nWorks with factory seats, although seat like, Recaro, with shoulder harness compatibility is recommended. Our bar allows full seat travel with any seat.\nEasy to install and perfect fitment, guaranteed.\nComes with detailed installation instructions.\nOur Standard powder coat color is T002-BK08 Matte Black #27038 20% Gloss powder coat included. Refer to Color chart next row.\nCustom powder coat color there is an additional $250 charge. See Color Charthere.\nYour roll bar can be professionally painted any color for an additional charge. Contact us for a quote.\nPATENT PENDING DESIGN\nWE HIGHLY RECOMMEND CMS ROLLBARS ARE ONLY INSTALLED BY SHOPS THAT HAVE EXPERIENCE INSTALLING ROLL BARS. CANTRELL MOTORSPORTS CAN MOST LIKELY DIRECT YOU TO A INSTALLATION SHOP IN YOUR AREA. CLICK ON THIS LINK FOR COMPLETE INSTALLATION INSTRUCTIONS (991)\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Satin Black","offer_id":42792828010671,"sku":"700-RB991-1","price":3500.0,"currency_code":"USD","in_stock":true},{"title":"Custom Powdercoat","offer_id":42792828043439,"sku":"700-RB991-2","price":3500.0,"currency_code":"USD","in_stock":true},{"title":"Paint to Sample","offer_id":42792828076207,"sku":"700-RB991-3","price":4750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/991-Cantrell-Bolt-In-Roll-Bar-1x1.jpg?v=1789768451"},{"product_id":"991-inconel-megaphone-center-muffler-delete","title":"991 and 997 Inconel Megaphone Center Muffler Delete \"Crack Pipe\" Exhaust","description":"\u003cp\u003eOur Megaphone crack pipe features...\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInconel 625\u003c\/li\u003e\n\u003cli\u003eMegaphones for enhanced wave strength (more power)\u003c\/li\u003e\n\u003cli\u003eFull 3.5\" X Pipe merge\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eYOU HAVE BEEN WARNED! This system sounds badass, BUT….\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIt was designed for race cars, and as such, it is UNCOMPROMISING\u003c\/li\u003e\n\u003cli\u003eIt drones at certain RPM\u003c\/li\u003e\n\u003cli\u003eIt vibrates the whole car\u003c\/li\u003e\n\u003cli\u003eIt causes anything that is loose to rattle and buzz\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIf anything above is concerning to you, the Crack Pipe is NOT for you!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFor 997's with Dundon V2 Street Headers, only Mini Crack Pipe is available,*\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"991 GT3\/RS Stock Headers","offer_id":10834097209380,"sku":"100-30306","price":8065.0,"currency_code":"USD","in_stock":true},{"title":"991 GT3\/RS Dundon Race Headers","offer_id":32107076288548,"sku":"100-30308","price":8065.0,"currency_code":"USD","in_stock":true},{"title":"991 GT3\/RS Dundon Street Headers","offer_id":32107077238820,"sku":"100-30307","price":8065.0,"currency_code":"USD","in_stock":true},{"title":"997 GT3\/RS Stock Headers","offer_id":40765484990639,"sku":"100-30305","price":8065.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/991-and-997-inconel-megaphone-center-muffler-delete-crack-pipe-exhaust-384674.jpg?v=1626998292"},{"product_id":"991-1991-2-gt3-carbon-gurney-flap","title":"991.1\/991.2 GT3 Carbon Gurney Flap","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003csection class=\"content\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"inner-page row\"\u003e\n\u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12 xs-margin-bottom-50\"\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"clearfix\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-sm-9 no-margin-left body2-margin-top\"\u003e\n\u003cp\u003e991.1\/991.2 GT3 Carbon Fiber Gurney Flap aids in creating downforce without having to increase the angle of attack for the rear wing. Enjoy easy installation with 3M industrial double sided adhesive. \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Dundon Motorsports","offers":[{"title":"Gloss","offer_id":10834097405988,"sku":"504-10004","price":695.0,"currency_code":"USD","in_stock":true},{"title":"Matte","offer_id":10834097438756,"sku":"504-10005","price":695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/99119912-gt3-carbon-gurney-flap-268991.jpg?v=1776091743"},{"product_id":"991-1991-2-gt3-k-n-high-flow-air-filter","title":"991.1\/991.2 GT3 K\u0026N High Flow Air Filter","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAn easy way to free up some power in your 991.1 or 991.2  GT3.  We recommend changing the airfilter when installing Dundon exhaust packages to reduce pumping losses and  free up as much power as possible!\u003c\/p\u003e\n\u003cp\u003eIn conjunction with the Dundon Race Headers on the 991 GT3 the K\u0026amp;N air filters show about 8-9whp gain!\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10834097569828,"sku":"991010I-FA1-KNFILTER-332484","price":85.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/991-1-991-2-GT3-K-N-High-Flow-Air-Filter-1x1.jpg?v=1789765478"},{"product_id":"991-1991-2-gt3rsgt2rs-carbon-gurney-flap","title":"991.1\/991.2 GT3RS\/GT2RS Carbon Gurney Flap","description":"\u003cp\u003e991.1, 991.2 GT3RS and 991.2 GT2RS: Carbon Fiber Gurney Flap to aid in down force without excessive angle of attack. Attaches with 3M double sided tape for a secure and easy installation.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Gloss","offer_id":46581275164847,"sku":"504-10009","price":695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/99119912-gt3rsgt2rs-carbon-gurney-flap-215798.jpg?v=1776091426"},{"product_id":"996997-gt3-turbo-only-harmonic-damper","title":"996\/997 GT3 \u0026 Turbo Harmonic Damper","description":"\u003cp\u003eReduce crankshaft harmonics while also increasing power and reliability with our rigorously tested Harmonic Dampers.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e997.1 GT3 and RS use the factory belt size (2260)\u003c\/li\u003e\n\u003cli\u003e996 and 997 Turbo must switch to size 2260\u003c\/li\u003e\n\u003cli\u003e997.2 GT3 and RS must switch to size 2260\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBelt is included\u003c\/p\u003e\u003cp\u003eCrank-Holding Tool Available Separately \u003ca href=\"https:\/\/www.dundonmotorsports.com\/products\/crankshaft-holding-tool-997-gt3-turbo\"\u003eHERE\u003c\/a\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe Silent Killer\u003c\/strong\u003e\u003cbr\u003eThis is a term you have surely heard before, but probably not in the context of engines. Engine failures are not uncommon; all of us have either been the victim of a failure or know someone who has. Most often it is your typical failure, one we have seen or heard of before. Recently, failures that result from a different kind of cause are becoming more common. The Porsche GT3 engine has had quite a few harmonic failures as evidenced by the volume of emails I have received and our own unfortunate experiences. Just to put this in context, all engines suffer from this phenomenon.\u003c\/p\u003e\u003cp\u003eEngines create a continual series of vibrations known as harmonics. Each time the engine ignites the fuel mixture and there is combustion, the forces from these combustion’s act upon the crankshaft. The forces generated from these combustion’s force the pistons downward which, in turn, rotate the crankshaft. This is known as tangential torques. The rotating and reciprocating masses create torque pulses within the crankshaft each time it rotates.\u003c\/p\u003e\u003cp\u003eThe Porsche GT3 engine seems to be having its fair share of vibrational failures. We have seen crank pulley bolts and flywheels come loose, cam actuators come apart and in our own particular case we had an engine that broke the scavenge gears inside the oil pump. I know of other GT3 engines that have had similar failures. These failures are not new to the Porsche Boxer engine.\u003c\/p\u003e\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/broken-scavenge-gears-e1381263643894-300x210_480x480.jpg?v=1582126676\" alt=\"broken scavenge gears\"\u003e\u003c\/figure\u003e\u003cp\u003eHarmonics are not new. For years the Porsche Boxer engine has been thought of as a neutrally balanced engine with each pair of opposite pistons always in the same position and the forces are counter balanced or cancelled out. Not so. As engine internals have become lighter and lighter to meet mileage requirements the issue of balance and harmonics has become more real.\u003c\/p\u003e\u003cp\u003eSo how did we come up with the specifications of the new damper? First we had to understand the cause and then we needed to find the RPM range and the magnitude of the pulses. This was done by fitting up special test equipment at each end of an engine along with high speed impulse sensors and inputting this information into some very powerful software. Some of the areas of analysis that can be computed are, angular vibration velocities measured degrees per sec, angular vibration displacement measured degrees, torsion angle orders, energy generated at certain frequencies related to engine speed, and the energy generated at specific orders at their critical engine speeds. Essentially, by running the engine at different RPM’s under load we can measure the deflection of the crankshaft by the tooth count at each end of the engine. We know the degree difference between each tooth on these wheels so the deflection of the crankshaft can be calculated by the stroke or offset of the crankshaft and the degrees of deflection measured. We are extremely grateful for the assistance of an outside company who provided the test equipment and the software. This information is then supplied to the damper manufacturer who can then calculate the size and weight of the damper along with the size of the elastomer required. These new dampers are able to be rebuilt so anyone using one in a racing application can periodically rebuild it. The factory 997 RS pulley is located on the crankshaft by a very small amount of engagement 0.160”, with no interference at all, a small alignment dowel pin and held in place by the pulley bolt. We always see the end of the crankshaft nose showing signs of pulley movement. Earlier I stated where the pulley bolts have come loose. Crankshaft nose end moves, pulley moves, bolt comes loose. This new damper increases the engagement onto the crankshaft nose to over 0.500” almost all the way back to the front crankshaft seal. We have also included interference to the crankshaft nose diameter. The damper is located by the same dowel pin and the original pulley bolt. The outside diameter of the damper is engraved the same as the factory Pulley is. The OEM, TDC, and Timing marks are retained along with full 360 degree increments.\u003c\/p\u003e\u003cp\u003eAdded benefits can also be had in simple performance gains. A “straight” crankshaft, an engine with less “internal vibration” will always produce more torque. Would a race version of the GT3 engine gain torque if fitted with a damper? Absolutely, it’s an engine first, a Porsche engine second. A small amount of additional torque can make the difference. Removing all of the vibration from the timing chain, keeping the camshaft timing consistent with the designed position will always result in more torque. By adding a crankshaft damper designed especially for these engines to “match” the low speed frequencies causing the current failures, the counter acting absorbs ion of the damper will counter the crankshaft twist and eliminate the failures. Now changes to the engines displacement with longer stroke crankshafts, longer or shorter rods, etc. can be done. This added mass at the correct end of the crankshaft will allow owners to remove the stock heavy mass dual flywheels and change to the single mass flywheels. The greatest dimensional change in the crankshaft happens at the pulley end of the crankshaft. Even if no other changes are done to the engine the owner can now have confidence that the known parts to fail should not!\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":38126095302831,"sku":"1001-20001","price":2075.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/996-997-GT3-Turbo-Harmonic-Damper-1x1.jpg?v=1789766742"},{"product_id":"997-1-gt3-cobb-ap-and-dundon-pro-tune","title":"997 GT3 Cobb AP and Dundon Pro Tune","description":"\u003cp\u003eTune your Porsche with a Cobb AP!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eIncludes:\u003c\/p\u003e\n\u003cp\u003eCobb Accessport - $1095 (997.1) or $1165 (997.2)\u003c\/p\u003e\n\u003cp\u003eDundon ProTune - $895\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"997.1 GT3\/RS Cobb AP","offer_id":10834099339300,"sku":"901-AP3-POR-005-PT","price":1990.0,"currency_code":"USD","in_stock":true},{"title":"997.2 GT3\/RS Cobb AP","offer_id":10834099372068,"sku":"901-AP3-POR-003-PT","price":2060.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/997-gt3-cobb-ap-and-dundon-pro-tune-309590.jpg?v=1627084798"},{"product_id":"997-1-gt3rs-997-2-gt3-dual-cone-single-opening-carbon-fiber-airbox","title":"997.1 GT3\/RS Dual Cone Carbon Fiber Airbox","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003csection class=\"content\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"inner-page row\"\u003e\n\u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12 xs-margin-bottom-50\"\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"clearfix\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-sm-9 no-margin-left body2-margin-top\"\u003e\n\u003cp\u003eFree up power and add some beauty to your engine bay with the Dundon Motorsports Carbon Fiber Dual Cone Airbox. On a stock car this airbox will free up about 5-7whp. On a Dundon Header equipped car, this airbox is good for about 8-10 whp!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Dundon Motorsports","offers":[{"title":"3.6L Airbox with Porsche Slim Fan","offer_id":46581274017967,"sku":"200-30024","price":3495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/997-1-GT3-RS-Dual-Cone-Carbon-Fiber-Airbox-1x1.jpg?v=1789767089"},{"product_id":"997-1-gt3rs-long-tubea-street-header-exhaust-system","title":"997.1 GT3 Long Tube Street Header Exhaust System","description":"\u003cp\u003eDundon Street (Catted) tuned length headers and valved side delete exhaust system for the 997.1 GT3 are available now! We were able to keep all of the things that people love about our race headers: scroll down to learn more!\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThe Dundon 997.1 GT3 Long Tube Street Header Exhaust System\u003c\/strong\u003e\u003cbr\u003e \u003c\/p\u003e\u003cp\u003eDundon Convertible Street (Catted) tuned length headers and valved side delete exhaust system for the 997.1 GT3 are available now!  We were able to keep all of the things that people love about our race headers:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eless weight\u003c\/li\u003e\n\u003cli\u003emore power,\u003c\/li\u003e\n\u003cli\u003egreat sound,\u003c\/li\u003e\n\u003cli\u003equiet when you want it to be\u003c\/li\u003e\n\u003cli\u003eno drone\u003c\/li\u003e\n\u003cli\u003elifetime structural warranty\u003c\/li\u003e\n\u003cli\u003e100% 30day money back guarantee\u003cul\u003e\u003cli\u003eif you try it and don't like it, send it back we'll give you your money back!\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eConvertible to no cats with the swappable test pipes for track days (available separately).\u003cbr\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWe use 321SS (a superior grade of Stainless steel to the cheaper 304SS) and use a metal core spiral wound 200CPSI catalytic converter.  All our products are mfg in the USA in our shop in Gig Harbor, WA.\u003c\/p\u003e\u003cp\u003eBy routing the primaries up and positioning the catalytic converter more vertical we were able to retain 99% of the primary length of the race system. This is how we are able to achieve 25whp gains on the 997.1 GT3.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"2.5\" (for OEM Muffler)","offer_id":46581273231535,"sku":"100-30098","price":8810.0,"currency_code":"USD","in_stock":true},{"title":"3.0\" (for Dundon Muffler)","offer_id":46581334769839,"sku":"100-30099","price":8810.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/9972-gt3-long-tube-street-header-exhaust-system-1735383.jpg?v=1762300576"},{"product_id":"997-1-gt3rs-gurney-flap","title":"997.1 GT3RS Gurney Flap","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003csection class=\"content\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"inner-page row\"\u003e\n\u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12 xs-margin-bottom-50\"\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"clearfix\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-sm-9 no-margin-left body2-margin-top\"\u003e\n\u003cp\u003e997.1 GT3 Carbon Fiber Gurney Flap in Gloss or Matte\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Dundon Motorsports","offers":[{"title":"Gloss","offer_id":10834099601444,"sku":"99701RA-A-GG00C-G","price":695.0,"currency_code":"USD","in_stock":true},{"title":"Matte","offer_id":10834099666980,"sku":"99701RA-A-GM00C-M","price":695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/9971-gt3rs-gurney-flap-108674.jpg?v=1619341240"},{"product_id":"997-2-gt3-and-rs-long-tubea-street-header-exhaust-system","title":"997.2 GT3RS Long Tube Street Header Exhaust System","description":"\u003cp\u003eDundon Street (Catted) tuned length headers and valved side delete exhaust system for the 997.2 GT3RS are available now! We were able to keep all of the things that people love about our race headers: scroll down to learn more! *V2.0 Headers shown - Updated in 2021\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003eThe Dundon 997 GT3\/RS Long Tube Street Header Exhaust System\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eless weight\u003c\/li\u003e\n\u003cli\u003emore power,\u003c\/li\u003e\n\u003cli\u003egreat sound,\u003c\/li\u003e\n\u003cli\u003equiet when you want it to be\u003c\/li\u003e\n\u003cli\u003eno drone\u003c\/li\u003e\n\u003cli\u003elifetime structural warranty\u003c\/li\u003e\n\u003cli\u003e100% 30day money back guarantee\u003cul\u003e\u003cli\u003eif you try it and don't like it, send it back we'll give you your money back!\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eConvertible to no cats with the swappable test pipes for track days (available separately).\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eWe use 321SS (a superior grade of Stainless steel to the cheaper 304SS) and use a metal core spiral wound 200CPSI catalytic converter.  All our products are manufactured in the USA in our shop in Gig Harbor, WA.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eBy routing the primaries up and positioning the catalytic converter more vertical we were able to retain 99% of the primary length of the race system. This is how we are able to achieve 27whp gains on the 997.2 GT3 and 30whp gains on the 997.2 GT3RS\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"2.5\" (for OEM Muffler)","offer_id":41180083060911,"sku":"100-30041","price":8810.0,"currency_code":"USD","in_stock":true},{"title":"3.0\" (for Dundon Muffler)","offer_id":41180083093679,"sku":"100-30042","price":8810.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/997.1-2_GT3_Long_Tube_Street_Header_Exhaust_System-2.jpg?v=1762465475"},{"product_id":"997-2-gt3rs-3-8l-dual-cone-carbon-fiber-airbox","title":"997.2 GT3RS 3.8L\/4.0L Dual Cone Carbon Fiber Airbox","description":"\u003cp\u003eWe based this design on the fabled 997 4.0L GT3RS.  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If you need to source it or are unsure, you can order our option that includes a new fan slim line decklid fan from Porsche.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"997.2 GT3RS 3.8L","offer_id":10834100125732,"sku":"200-30025","price":3195.0,"currency_code":"USD","in_stock":true},{"title":"997.2 GT3RS 4.0L","offer_id":10834100158500,"sku":"200-30026","price":3195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/997-2-GT3RS-3-8L-4-0L-Dual-Cone-Carbon-Fiber-Airbox-1x1.jpg?v=1789759085"},{"product_id":"apex-digital-driving-coach","title":"Apex Digital Driving Coach","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eAPEX is an artificial intelligence system used for vehicle performance simulation. APEX learns the performance limits of your vehicle, and gives you real-time feedback on how to optimize your decisions at every point on the track.\u003c\/p\u003e\n\u003cp\u003eBluetooth connectivity to your phone gives you laptimes and a \"heat\" map showing where on track you're not using all of the available performance (lateral grip, braking, throttle out of turns, etc..)\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"APEX-DDC","offer_id":46581276770479,"sku":"XXX000S-FA1-APEX","price":595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/apex-digital-driving-coach-774010.jpg?v=1626998348"},{"product_id":"apex-suction-cup-mount","title":"Apex Suction Cup Mount","description":"\u003cp\u003eWith this suction cup mount designed specifically for the Apex Pro, you can rest assured knowing it's not going anywhere.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10834101239844,"sku":"703-20002","price":40.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/apex-suction-cup-mount-457781.jpg?v=1615920338"},{"product_id":"cup-wing-straight-gurney-flap","title":"Cup Wing Straight Gurney Flap","description":"\u003cp\u003e\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10834102419492,"sku":"504-10001","price":695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/cup-wing-straight-gurney-flap-911720.jpg?v=1619341318"},{"product_id":"dsc-suspension-control-module","title":"DSC Suspension Control Module - 987\/997 Platform","description":"\u003cp\u003eUpgrade your car's handling with DSC! This revolutionary device turns your passive PASM system into an active suspension system with multiple personalities. The DSC module monitors acceleration, brake application, G forces, and many other parameters to tune your car's handling in milliseconds.\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003eGreat for track cars as we can build a custom map for the shocks for each track you go to, no more fiddling with knobs or trying various settings only to end up frustrated.  We can log the cars performance and make changes to your dampers settings so they dynamically adjust!\u003c\/p\u003e\n\u003cp\u003eAvailable for:\u003c\/p\u003e\n\u003cp\u003e997 (need to add an accelerometer for non-Turbo cars) Carrera, Turbo, GT3, GT3RS\u003c\/p\u003e\n\u003cp\u003e987 (need to add an accelerometer) Cayman\/Boxster, Cayman\/Boxster S, Cayman R, Boxster Spyder\u003c\/p\u003e\n\u003cp\u003eAlso available for 996, 993 and 964 applications call for details!\u003c\/p\u003e\n\u003cp\u003eCheck out our blog article and video for more info: \u003ca href=\"https:\/\/www.dundonmotorsports.com\/blog\/what-is-dsc-sport\"\u003eWhat is DSC Sport\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e997\/987 DSC Control Module\u003c\/p\u003e\n\u003cp\u003eAccelerometer (necessary for 987\/997.1 non turbo cars)\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"DSCv1 - 987.1 \u0026 997.1 (inc. GT3\/RS)","offer_id":39581310648495,"sku":"405-20003","price":1560.0,"currency_code":"USD","in_stock":true},{"title":"DSCv1 - 987.2 \u0026 997.2","offer_id":40408375132335,"sku":"405-20004","price":1390.0,"currency_code":"USD","in_stock":true},{"title":"DSCv1 - 997 Turbo ALL (inc. GT2)","offer_id":40408380211375,"sku":"405-20004","price":1390.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/DSC_991.jpg?v=1765217544"},{"product_id":"dundon-windshield-banner","title":"Dundon Windshield Banner","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003csection class=\"content\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"inner-page row\"\u003e\n\u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12 xs-margin-bottom-50\"\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"clearfix\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-sm-9 no-margin-left body2-margin-top\"\u003e\n\u003cp\u003eDundon Windshield Banner!  Show your love for your favorite Porsche Performance Parts!\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cdiv class=\"clearfix\"\u003e\u003c\/div\u003e\n\u003cfooter class=\"design_2\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-lg-4 col-md-4 col-sm-6 col-xs-12 padding-left-none md-padding-left-none sm-padding-left-15 xs-padding-left-15\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/footer\u003e","brand":"Dundon Motorsports","offers":[{"title":"Windshield Banner","offer_id":46581276737711,"sku":"XXX000A-FA1-Windshield-Banner","price":250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/Dundon-Windshield-Banner-1x1.jpg?v=1789768480"},{"product_id":"ferodo-ds1-11-for-991-gt3-steel-calipers","title":"Ferodo DS1.11 for 991 GT3\/RS Steel Calipers","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003csection class=\"content\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"inner-page row\"\u003e\n\u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12 xs-margin-bottom-50\"\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"clearfix\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-sm-9 no-margin-left body2-margin-top\"\u003e\n\u003cp\u003eFerodo DS1.11 for 991 GT3 Steel and PCCB Calipers\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Dundon Motorsports","offers":[{"title":"991 GT3 Front","offer_id":10834103894052,"sku":"603-FCP4664W-N","price":619.0,"currency_code":"USD","in_stock":true},{"title":"991 GT3 Rear","offer_id":10834103926820,"sku":"603-FCP4665W-N","price":609.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/Ferodo-DS1-11-Track-Pads-for-Radi-CAL-Calipers-1x1_14d340fe-59eb-43f9-a582-8bc0ea9b670b.jpg?v=1789767058"},{"product_id":"ferodo-ds1-11-track-pads-for-radi-cal-calipers","title":"Ferodo DS1.11 Track Pads for Radi-CAL Calipers","description":"\u003cp\u003eFerodo DS1.11 Track Pads for Radi-CAL Calipers including burnishing.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"DS1.11 Front Pads","offer_id":46581275656367,"sku":"603-FRP3144WB","price":602.0,"currency_code":"USD","in_stock":true},{"title":"DS1.11 Rear Pads","offer_id":46581334507695,"sku":"603-FRP216W","price":430.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/Ferodo-DS1-11-Track-Pads-for-Radi-CAL-Calipers-1x1_14d340fe-59eb-43f9-a582-8bc0ea9b670b.jpg?v=1789767058"},{"product_id":"ferodo-ds2500-street-brake-pads","title":"Ferodo DS2500 \"Street\" Brake Pads","description":"\u003cp\u003eFerodo DS2500 \"Street\" Brake Pads\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"997 GT2\/GT3 Front","offer_id":10834104057892,"sku":"FRP3075H","price":551.56,"currency_code":"USD","in_stock":true},{"title":"997 GT2\/GT3 Rear","offer_id":10834104090660,"sku":"FRP3143H","price":320.39,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/ferodo-ds2500-street-brake-pads-142470.jpg?v=1615920385"},{"product_id":"gt3-321-side-muffler-deletes-for-997991","title":"GT3 347 Side Muffler Deletes for 997\/991","description":"\u003cp\u003eEnjoy 347 Stainless construction, same high quality valves as used in our battle tested Race Headers. Reduce weight through the elimination of side mufflers, reduce heat on the rear tires and under the decklid, no Drone, and 100% Lifetime Guarantee, including track use.\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003eAvailable in OEM lower flow tube size for stock muffler or 3\" lower flow tube size for use with Dundon Lifetime Mufflers\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e3\" Lower Flow Path Offers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e44% improvement in flow over stock\u003c\/li\u003e\n\u003cli\u003e20% reduction in pressure drop over stock\u003c\/li\u003e\n\u003cli\u003eUse with Loud Muffler to have a bulletproof light weight track setup, with no drone\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUse with Quiet Muffler to have a bulletproof light weight track setup for dB restricted tracks!\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"997\/991 GT3 3\" Valved Side Delete (with Dundon Muffler)","offer_id":10834104844324,"sku":"106-10007","price":2955.0,"currency_code":"USD","in_stock":true},{"title":"997\/991 GT3 OEM Valved Side Delete","offer_id":10834104877092,"sku":"106-10006","price":2955.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/gt3-347-side-muffler-deletes-for-997991-4510197.jpg?v=1761803552"},{"product_id":"gt3-muffler-adapter-kit-for-981","title":"GT3 Muffler Adapter Kit for 981","description":"\u003cp\u003eOur GT3 Muffler Adapter kit comes with everything you need to mount a GT3 muffler on your 981 except the muffler and tips!\u003c\/p\u003e\n\u003cp\u003eImprove the sound and performance of your 981 Boxster or Cayman with our GT3-style muffler adapter. In stock form, the 981 exhaust cannot handle the thermal load of a modified 3.8L GT4 engine, and can have big problems with heat-soak resulting in high oil and coolant temperatures. The larger 2.5\" tubing helps evacuate the exhaust gases to reduce heat soak and improve the performance of your engine while also providing a great sound upgrade!\u003c\/p\u003e\u003cp\u003eWith options to add sport catalytic converters and valves, you can add your choice of GT3-style muffler to round this package out. Whether it's a stock 997\/991 GT3\/RS center muffler, or a Dundon Lifetime Loud or Quiet muffler, this kit is compatible with all of them. Please reach out if you have specific fitment questions.\u003c\/p\u003e\u003cp\u003eThe kit is made with 2.5\" 321 Stainless Steel for a lifetime of trouble free use.\u003c\/p\u003e\u003cp\u003ePair with our \u003ca href=\"https:\/\/www.dundonmotorsports.com\/products\/981-gt4-spyder-race-headers-425hp\"\u003eGT4 Clubsport Headers\u003c\/a\u003e and a \u003ca href=\"https:\/\/www.dundonmotorsports.com\/products\/lifetime-center-muffler-5\"\u003e991 GT3 Muffler\u003c\/a\u003e for a complete exhaust upgrade.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e2.5\" 321 Stainless over axle pipes\u003c\/li\u003e\n\u003cli\u003eGT3 Muffler Bracket \u0026amp; adapter\u003c\/li\u003e\n\u003cli\u003eGT3 Muffler Straps\u003c\/li\u003e\n\u003cli\u003eAll necessary hardware\u003c\/li\u003e\n\u003cli\u003eOptional high flow catalytic converters\u003c\/li\u003e\n\u003cli\u003eOptional valve sections (to retain Sport Exhaust functionality)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dundon Motorsports","offers":[{"title":"Manual \/ With Valves \/ With Sport Cats","offer_id":31647369461796,"sku":"100-30157","price":5965.0,"currency_code":"USD","in_stock":true},{"title":"Manual \/ Without Valves \/ Straight Pipes","offer_id":44179419693231,"sku":"100-30160","price":1498.0,"currency_code":"USD","in_stock":true},{"title":"PDK \/ With Valves \/ With Sport Cats","offer_id":31647369330724,"sku":"100-30161","price":5955.0,"currency_code":"USD","in_stock":true},{"title":"PDK \/ Without Valves \/ Straight Pipes","offer_id":44179419725999,"sku":"100-30164","price":1498.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/GT3-Muffler-Adapter-Kit-for-981-1x1.jpg?v=1789759135"},{"product_id":"gt4-carbon-fiber-gurney-flap","title":"981 GT4 Carbon Fiber Gurney Flap","description":"\u003cp\u003eDundon Motorsports is proud to offer a stunning and functional bit of aerodynamic aid for your GT4, a carbon fiber Gurney Flap. This allows for additional downforce with limited increase in drag. We offer the Gurney Flap in Gloss or Matte clear.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Gloss Clear","offer_id":10834106089508,"sku":"981040A-A-GG00C-G","price":695.0,"currency_code":"USD","in_stock":true},{"title":"Matte Clear","offer_id":10834106155044,"sku":"981040A-A-GM00C-M","price":695.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/gt4-carbon-fiber-gurney-flap-182159.jpg?v=1776093058"},{"product_id":"gt4-close-ratio-3rd-6th-gearset","title":"GT4 Close Ratio 3rd - 6th Gearset","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003csection class=\"content\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"inner-page row\"\u003e\n\u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12 xs-margin-bottom-50\"\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"clearfix\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-sm-9 no-margin-left body2-margin-top\"\u003e\n\u003cp\u003eWe've been searching for a quality close ratio gear set for the GT4 and found it in Holinger, the manufacturer of gears for Porsche Racing! No modifications to the gear box, direct fit, splined synchros (no more 3rd gear failures) and lower ratios to keep you in the power band!\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10834106187812,"sku":"40.310.PG8K1","price":5545.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/gt4-close-ratio-3rd-6th-gearset-897047.jpg?v=1615920401"},{"product_id":"gt4-hardware-kit","title":"981 GT4 Header Hardware Kit","description":"\u003cp\u003e18 - Stainless Steel Studs\u003c\/p\u003e\n\u003cp\u003e18 - Serrated Flange Lock Nuts\u003c\/p\u003e\n\u003cp\u003e4 - 30mm long bolts\u003c\/p\u003e\n\u003cp\u003e4 - distorted flange lock nuts\u003c\/p\u003e\n\u003cp\u003e2 - 2.5\" v-band gaskets\u003c\/p\u003e\n\u003cp\u003e10 - Stainless Steel Conical Springs\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10834106253348,"sku":"101-10008","price":155.0,"currency_code":"USD","in_stock":true}]},{"product_id":"gt4-pro-diff","title":"GT4 Pro Diff","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003cp\u003eHolinger (Drexler) Pro Diff for the 981S and GT4\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10834106351652,"sku":"981040E-FA1-Pro-Diff","price":5045.0,"currency_code":"USD","in_stock":true}]},{"product_id":"gt4-reinforced-3rd-gear","title":"GT4 Reinforced 3rd Gear","description":"\u003cp\u003eWe've been searching for a quality 3rd gear replacement for the GT4 and found it in Holinger, the manufacturer of gears for Porsche Racing!\u003c\/p\u003e\n\u003cp\u003eA replacement to the weak and poorly designed factory 3rd gear in the GT4.  Synchro dog-rings are splined to the gear - this prevents the ring-detachment failure that has been known to occur in standard GT4 gearboxes (see close-up image below).  Holinger delivers again!\u003c\/p\u003e\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/Splined_3rd_Gear_480x480.jpg?v=1582134953\" alt=\"splined third geer\"\u003e\u003c\/figure\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10834106384420,"sku":"981040E-FA1-Reinforced-3rdGear","price":1195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/gt4-reinforced-3rd-gear-240701.jpg?v=1627256126"},{"product_id":"harness-reels","title":"Harness Reels","description":"\u003cmeta charset=\"utf-8\"\u003e\n\u003csection class=\"content\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"inner-page row\"\u003e\n\u003cdiv class=\"col-lg-12 col-md-12 col-sm-12 col-xs-12 xs-margin-bottom-50\"\u003e\n\u003cdiv class=\"content\"\u003e\n\u003cdiv class=\"clearfix\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-sm-9 no-margin-left body2-margin-top\"\u003e\n\u003cp\u003eKeep your harnesses rolled up nice and neat.  Our Harness Reels are available in 1.5\" (typical aftermarket bar size) and 41mm (typically Porsche Club Sport bar size). All are anodized black\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Dundon Motorsports","offers":[{"title":"Harness Reels for 1.5\" Bar","offer_id":46581275689135,"sku":"701-00001","price":121.0,"currency_code":"USD","in_stock":true},{"title":"Harness Reels for 41mm (Clubsport Bar)","offer_id":46581334474927,"sku":"XXX000S-FA1-HarnessReel40mm","price":121.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/harness-reels-311135.jpg?v=1615920392"},{"product_id":"holinger-pro-differenital","title":"Holinger Pro Differential","description":"\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/1433255149_porsche_g96_g97_g50_pop1_480x480.jpg?v=1582127151\" alt=\"product\"\u003e\u003c\/figure\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eLimited Slip Differential for Porsche G96\/G97 and G50 transaxles. Holinger have spent many years supplying Porsche with O.E. sequential gearbox parts and have been involved in officially servicing their racing transmissions. We have become very familiar with the potential weaknesses in the differential area and have created the ultimate solution. We are proud to finally release our dedicated racing LSD for this application.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eMultiple Ramp-Angle options including custom designs.  Contact us for more info\u003c\/li\u003e\n\u003cli\u003eBreak-Away Torque easily adjusted by a range Belleville springs rather than shims.\u003c\/li\u003e\n\u003cli\u003e20 Friction-Faces.\u003c\/li\u003e\n\u003cli\u003eLoose fit side bearings allowing quick and precise Crown Wheel position adjustment. We have taken great care to precisely grind bearing journal sizes where bearings can be fitted by hand without a puller or press. The surface of the bearing's shim rests against is continuous and smooth, with no cut- outs which could leave marks or lead to damage on the shims.\u003c\/li\u003e\n\u003cli\u003eThe differential housing splits at a new location away from the major load paths, strengthening and stiffening the area under the Crown-Wheel, addressing the fatigue cracking in the OEM unit.\u003c\/li\u003e\n\u003cli\u003eHousings are made from the same steel and case hardened heat treatment process from which we make our racing-gears, giving it a superb fatigue life.\u003c\/li\u003e\n\u003cli\u003eEnd cover is held captive with the world's best ARP fasteners with fine threads allowing maximum clamping capacity.\u003c\/li\u003e\n\u003cli\u003eSide and Pinion gears with Billet CNC milled tooth-forms featuring carefully chosen root radii and pressure angles to resist extreme shock loading and provide ultimate fatigue life.\u003c\/li\u003e\n\u003cli\u003eClutch plates are of a fine-spline design eliminating the cracking which occurred on the OEM plates. The fine-spline outer plates allow the housing to be more compact and lightweight, with minimum stress concentration.\u003c\/li\u003e\n\u003cli\u003eUnique LASER cut oil passages are cut into the clutch plates allowing excess oil to escape with a clear path way. They also act as lubrication pockets to ensure the wet clutch is always offered the correct amount of oil resulting in predictable friction characteristics.\u003c\/li\u003e\n\u003cli\u003eCross is precision ground with a specially shaped hub for extra rigidity.\u003c\/li\u003e\n\u003cli\u003eHousing Incorporates a specially shaped positive oil capture and lubrication feed taking advantage of its centrifugal force.\u003c\/li\u003e\n\u003cli\u003eStub axles are lubricated with quad helix grooves.\u003c\/li\u003e\n\u003cli\u003eProfessional Installation Require\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eFeel free to send us your transmission and we will give you a quote for installation! \u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10834106777636,"sku":"996010E-FA1-996\/7-G50-LSD","price":5045.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/Holinger-Pro-Differential-1x1.jpg?v=1789768505"},{"product_id":"intake-runners-981991-3-8l","title":"981 GT4 \/ 991.1 Carrera S 3.8L Intake Runners","description":"\u003cp\u003eUsing science and engineering to increase performance is what we do. The Dundon 981\/991 3.8L Intake Runners are no exception. Through careful design of the intake runner geometry we were able to add 30+ peak wheel horsepower on top of our already potent race headers and tune. By extending the torque curve we increased power substantially all the way to redline, over 100whp gains at 7850rpm over both our headers\/tune and stock.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10834107007012,"sku":"202-20001","price":3878.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/DMS-0283.jpg?v=1787159395"},{"product_id":"sub-belt-mount-991gt4","title":"Sub Belt Mount Set for Porsche 981\/991\/718\/992 Carbon Bucket Seats","description":"\u003cp\u003eDundon Sub-Belt Mount Set - For 981\/991\/718\/992 Bucket Seats\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eEnables the use of 6-point harnesses by providing an attachment point for the sub-belts.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10834107662372,"sku":"701-20002","price":459.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/sub-belt-mount-991gt4-331591.jpg?v=1619341420"},{"product_id":"991-1-991-2-gt3-gt3rs-911r-dual-reverse-cone-airbox-991-rs","title":"991 GT3RS Dual Reverse Cone Airbox for Stock Center Plenum","description":"\u003cul\u003e\n\u003cli\u003eDual Reverse Cone Airbox for 991 RS Stock Filter Area :1.77 sq ft\u003c\/li\u003e\n\u003cli\u003eReverse Dual Cone Filter Area: 6.25 sq ft\u003c\/li\u003e\n\u003cli\u003e353% more than stock.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":10951119208484,"sku":"200-30029","price":4995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/image_f9b46b75-3feb-49f7-8d62-6f2dd1bd487f.png?v=1789767501"},{"product_id":"991-2-gt3-long-tube-street-header-exhaust-system","title":"991.2 GT3 Long Tube Street Header Exhaust System","description":"\u003cp\u003eDundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991GT3 991 GT3RS and 911R are available now! *Muffler shown is not included with the system, only to see how the system goes together!!\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003eWe were able to keep all of the things that people love about our race headers:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eless weight\u003c\/li\u003e\n\u003cli\u003emore power,\u003c\/li\u003e\n\u003cli\u003egreat sound,\u003c\/li\u003e\n\u003cli\u003equiet when you want it to be\u003c\/li\u003e\n\u003cli\u003eno drone\u003c\/li\u003e\n\u003cli\u003elifetime structural warranty\u003c\/li\u003e\n\u003cli\u003e100% 30day money back guarantee\u003cul\u003e\u003cli\u003eif you try it and don't like it, send it back we'll give you your money back!\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eConvertible to no cats with the swappable test pipes for track days (available separately).\u003cbr\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWe use 321SS (a superior grade of Stainless steel to the cheaper 304SS) and use a metal core spiral wound 200CPSI catalytic converter.  All our products are mfg in the USA in our shop in Gig Harbor, WA.\u003c\/p\u003e\u003cp\u003eBy routing the primaries up and positioning the catalytic converter more vertical we were able to retain 99% of the primary length of the race system. This is how we are able to achieve 25whp gains on the 991.2 GT3, 30whp gains on the 991.1 GT3 and 32whp on the 991.1GT3RS.  This is the most power from a catted 991.2 GT3,  991.1 GT3 Exhaust, 991.1 GT3RS Exhaust or 911R Exhaust system.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eThe Dundon Street Headers on 991.2 GT3\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e477whp Peak \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e20-25whp gains at 8200-8500 rpm\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e40lbft-46lbft gains at 3000-5000 rpm\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eYou get everything you love about the Dundon Race Headers, 321 SS construction, industry leading power, lifetime structural warranty, and 100% money back guarantee, if you try it and don't like it, send it back we'll give you your money back!\u003cbr\u003e\u003cbr\u003eTo that end, see the dyno below!\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e991.2 GT3 Dundon Street (Catted) 477whp peak \u003c\/strong\u003e\u003c\/p\u003e\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/www.dundonmotorsports.com\/images\/content\/991_2%20GT3%206MT%20STOCK%20DYNO%20VS%20CATTED%20EXHAUST(1).jpg\" alt=\"\"\u003e\u003c\/figure\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eSome pics installed on the car, the street headers are only about 0.5\" shorter than our race headers. To fit everything we had to go up into the wheel well where the side mufflers sit. Only way to get the length required for real power gains...\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e \u003c\/p\u003e\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/IMG_4325_9085b5c1-23f3-4db7-a973-55e8946c3d64_480x480.jpg?v=1579218490\" alt=\"\"\u003e\u003c\/figure\u003e\u003cp\u003e\u003cbr\u003e\u003ci\u003eDundon 991 GT3\/RS showing length of primaries and routing required to fit the cat\u003c\/i\u003e\u003cbr\u003e \u003c\/p\u003e\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/IMG_4317_480x480.jpg?v=1579218490\" alt=\"\"\u003e\u003c\/figure\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eAs you can see to get the length we wanted we had to go up, anything that can bolt up to the stock location is leaving power on the table...\u003cbr\u003e \u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"991.2 GT3 Long Tube Street Header Exhaust System - 2.5\" Outlet (For use with OEM muffler)","offer_id":46581272772783,"sku":"100-30022","price":9265.0,"currency_code":"USD","in_stock":true},{"title":"991.2 GT3 Long Tube Street Header Exhaust System - 3.0\" Outlet (For use with Dundon muffler)","offer_id":46581334442159,"sku":"100-30023","price":9265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/9911-gt3-long-tube-street-header-exhaust-system-9568578.jpg?v=1761862553"},{"product_id":"991-1-gt3rs-and-911r-long-tube-street-header-exhaust-system","title":"991.1 GT3RS and 911R Long Tube Street Header Exhaust System","description":"\u003cp\u003eLess weight, more power, great sound, no drone, and no CEL. This is the Dundon Long Tube Street Header Exhaust.\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003eDundon Street (Catted) Long Tube header and valved side delete exhaust system for the 991 GT3RS and 911R are available now!  \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eless weight\u003c\/li\u003e\n\u003cli\u003emore power,\u003c\/li\u003e\n\u003cli\u003egreat sound,\u003c\/li\u003e\n\u003cli\u003equiet when you want it to be\u003c\/li\u003e\n\u003cli\u003eno drone\u003c\/li\u003e\n\u003cli\u003elifetime structural warranty\u003c\/li\u003e\n\u003cli\u003eNo CEL\u003c\/li\u003e\n\u003cli\u003e100% 30day money back guarantee\u003cul\u003e\u003cli\u003eif you try it and don't like it, send it back we'll give you your money back).\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eWe use 321SS (a superior grade of Stainless steel to the cheaper 304SS) and use a metal core spiral wound 200CPSI catalytic converter.  All our products are made in the USA in our shop in Gig Harbor, WA.\u003c\/p\u003e\u003cp\u003eBy routing the primaries up and positioning the catalytic converter more vertical we were able to retain 99% of the primary length of the race system. This is how we are able to achieve 25whp gains on the 991.2 GT3, 30whp gains on the 991.1 GT3 and 32whp on the 991.1GT3RS.  This is the most power from a catted 991.2 GT3,  991.1 GT3 Exhaust, 991.1 GT3RS Exhaust or 911R Exhaust system.\u003c\/p\u003e\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eThe Dundon Street Headers on 991 GT3RS and 911R make\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e445whp Peak\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e32whp at 8400rpm\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003e29lbft, 24whp gains at 4478rpm\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eThe 991.1 GT3 and RS with the catted system shows it's emissions based camshaft tuning for about 5100-6000rpm area. This stock tuning flattens the power delivery for about 400rpms and then climbs quickly starting at 5400rpm. This is completely fixable with a tune, but understand that many will not want a tune.\u003cbr\u003e\u003cbr\u003eYou get everything you love about the Dundon Race Headers, 321 SS construction, industry leading power, lifetime structural warranty, and 100% money back guarantee, if you try it and don't like it, send it back we'll give you your money back!\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cstrong\u003e991 GT3RS 911R Dundon Street (Catted) 445whp peak\u003c\/strong\u003e\u003cbr\u003e \u003c\/p\u003e\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/cimg9.ibsrv.net\/gimg\/rennlist.com-vbulletin\/1432x600\/80-dms_street_gt3rs_445whp_c9038c4192cbe3212ccf7303e1a346efb85f5eb3.jpg\" alt=\"\"\u003e\u003c\/figure\u003e\u003cp\u003e\u003cbr\u003e\u003ci\u003e991 GT3RS Dundon Street (Catted) 445whp\u003c\/i\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e991 GT3RS 911R Dundon Street (Catted\u003c\/strong\u003e\u003ci\u003e\u003cstrong\u003e) 29lbft and 24whp at 4478rpm\u003c\/strong\u003e\u003c\/i\u003e\u003cbr\u003e \u003c\/p\u003e\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/cimg4.ibsrv.net\/gimg\/rennlist.com-vbulletin\/1422x602\/80-dms_street_gt3rs_29wtq_24whp_7c7e875a1d9eb8ab685c99d50dfd7f8c0688afbb.jpg\" alt=\"\"\u003e\u003c\/figure\u003e\u003cp\u003e\u003cbr\u003e\u003ci\u003e991 GT3RS Dundon Street (Catted) 29lbft and 24whp\u003c\/i\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e991 GT3RS 911R Dundon Street (Catted\u003c\/strong\u003e\u003ci\u003e\u003cstrong\u003e) 32whp max gains\u003c\/strong\u003e\u003c\/i\u003e\u003cbr\u003e \u003c\/p\u003e\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/cimg0.ibsrv.net\/gimg\/rennlist.com-vbulletin\/1424x634\/80-dms_street_gt3rs_32whp_979039f8439fe90d9ecfbe8da76ab8cd3ef274f2.jpg\" alt=\"\"\u003e\u003c\/figure\u003e\u003cp\u003e\u003cbr\u003e\u003ci\u003e991 GT3RS Street (Catted) 32whp max gains\u003c\/i\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eThe Street Headers are only about 0.5\" shorter than our Race Headers. To fit everything we had to go up into the wheel well where the side mufflers sit. Only way to get the length required for real power gains...\u003cbr\u003e\u003cbr\u003eAs you can see to get the length we wanted we had to go up, anything that can bolt up to the stock location is leaving power on the table...\u003cbr\u003e\u003cbr\u003eVideo from the dyno so you can see and hear the awesomeness! You also get a good shot of how the headers are routed with the wheel off!\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/y6X8pTdubkQ\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"2.5\" Outlet (For use with OEM muffler)","offer_id":46581272740015,"sku":"100-30022","price":9265.0,"currency_code":"USD","in_stock":true},{"title":"3.0\" Outlet (For use with Dundon muffler)","offer_id":46581334409391,"sku":"100-30023","price":9265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/9911-gt3-long-tube-street-header-exhaust-system-9568578.jpg?v=1761862553"},{"product_id":"991-2-gt3rs-long-tube-street-header-exhaust-system","title":"991.2 GT3RS Long Tube Street Header Exhaust System","description":"\u003cp\u003eDundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991 GT3RS and 911R are available now! * Muffler shown is not included with the system, only to see how the system goes together!\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003eWe were able to keep all of the things that people love about our race headers:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eless weight\u003c\/li\u003e\n\u003cli\u003emore power,\u003c\/li\u003e\n\u003cli\u003egreat sound,\u003c\/li\u003e\n\u003cli\u003equiet when you want it to be\u003c\/li\u003e\n\u003cli\u003eno drone\u003c\/li\u003e\n\u003cli\u003elifetime structural warranty\u003c\/li\u003e\n\u003cli\u003e100% 30day money back guarantee\u003cul\u003e\u003cli\u003eif you try it and don't like it, send it back we'll give you your money back!\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eConvertible to no cats with the swappable test pipes for track days (available separately).\u003cbr\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWe use 321SS (a superior grade of Stainless steel to the cheaper 304SS) and use an advanced  metal core catalyst with better mixing and less pressure drop than a typical 200CPSI catalytic converter.  All our products are mfg in the USA in our shop in Gig Harbor, WA.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eBy routing the primaries up and positioning the catalytic converter more vertical we were able to retain 99% of the primary length of the race system. This is how we are able to achieve 20whp max gains on the 991.2 GT3RS,   This is the most power from a catted 991.2 GT3RS  Exhaust system.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003cbr\u003eYou get great drone free sound with working valves, 321 SS construction, industry leading power, lifetime structural warranty, and 100% money back guarantee, if you try it and don't like it, send it back we'll give you your money back!\u003c\/p\u003e\u003cp\u003e \u003cbr\u003eSome pics installed on the car, the street headers are only about 0.5\" shorter than our race headers. To fit everything we had to go up into the wheel well where the side mufflers sit. Only way to get the length required for real power gains...\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eAnything that can bolt up to the stock location is leaving power on the table...\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003ci\u003eDundon 991 GT3\/RS Street \u003c\/i\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003ci\u003eDundon 991 GT3\/RS showing length of primaries and routing required to fit the cat\u003c\/i\u003e\u003cbr\u003e\u003cbr\u003e \u003c\/p\u003e\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/IMG_4317_480x480.jpg?v=1579218490\" alt=\"\"\u003e\u003c\/figure\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eVideo from the dyno so you can see and hear the awesomeness! You also get a good shot of how the headers are routed with the wheel off!\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/youtu.be\/y6X8pTdubkQ\"\u003eDundon Street Headers on 991 GT3 - YouTube\u003c\/a\u003e\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"991.2 GT3RS Long Tube Street Header Exhaust System - 2.5\" Outlet (For use with OEM muffler)","offer_id":46581272838319,"sku":"100-30022","price":9265.0,"currency_code":"USD","in_stock":true},{"title":"991.2 GT3RS Long Tube Street Header Exhaust System - 3.0\" Outlet (For use with Dundon muffler)","offer_id":46581334376623,"sku":"100-30023","price":9265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/9911-gt3-long-tube-street-header-exhaust-system-9568578.jpg?v=1761862553"},{"product_id":"93mm-throttle-body-center-plenum-kit","title":"991.2 GT3 Touring 93mm Throttle Body-Center Plenum Air Intake Kit","description":"\u003cp\u003eLet your 991.2 GT3 breathe with a larger 93mm Throttle Body and Center Plenum! Scroll down for more details.\u003c\/p\u003e\n\u003cp\u003eIn testing the 991.2 GT3 and RS we found the air intake to be restrictive.  With the addition of the larger 93mm Throttle Body and Center Plenum you can allow the car to breathe better.  We measure this by comparing the atmospheric pressure outside of the Plenum to the pressure inside the plenum. Ideally, we want no differences.  This change helps reduce pressure losses from about 0.6psi down to 0.1psi when used with our Dual Reverse Cone Airbox.\u003c\/p\u003e\u003cp\u003eKit Includes:\u003c\/p\u003e\u003cp\u003eBig Mouth Center Plenum\u003c\/p\u003e\u003cp\u003e93mm Throttle Body\u003c\/p\u003e\u003cp\u003eTouring Airbox Adapter\u003c\/p\u003e\u003cp\u003eAdapter Harness\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":31566053015588,"sku":"200-30018","price":3965.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/9912-gt3-touring-93mm-throttle-body-center-plenum-air-intake-kit-258449.jpg?v=1626998291"},{"product_id":"nurburgring-quiet-tips","title":"Nurburgring Quiet Tips","description":"\u003cp\u003eNeed to dial it back a little bit? Get a meatball flag at your last track day? Our Quiet Tips take the edge off for the sound meter, but not your car's performance!\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003eWith the unique design that doesn’t sacrifice looks, the Nurburgring quiet tips can manifest a decibel reduction between 5-7db.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Dundon Lifetime GT3 Muffler","offer_id":31657338961956,"sku":"107-10009","price":905.0,"currency_code":"USD","in_stock":true},{"title":"OEM 997\/991 GT3\/GT3RS Muffler","offer_id":31657338994724,"sku":"107-10010","price":905.0,"currency_code":"USD","in_stock":true},{"title":"Dundon Titanium Ultralight GT3 Muffler","offer_id":42102203285679,"sku":"107-10015","price":1635.0,"currency_code":"USD","in_stock":true},{"title":"OEM 718 GT4\/GT4RS Muffler","offer_id":43371351343279,"sku":"107-10007","price":845.0,"currency_code":"USD","in_stock":true},{"title":"Dundon V11 GT4\/GT4RS Muffler","offer_id":43371351900335,"sku":"107-10008","price":845.0,"currency_code":"USD","in_stock":true},{"title":"OEM 992 GT3\/RS Muffler","offer_id":44265056141487,"sku":"107-10014","price":905.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/DMS-0018.jpg?v=1785955371"},{"product_id":"997-gt3-intake-plenum","title":"Resonance Air Intake Plenum w\/ 93mm Throttle Body 997.1 GT3\/GT3RS","description":"\u003cp\u003eDo you want more power for your Porsche? The Dundon 997 Resonance Intake Manifold is the perfect way to add some extra horsepower to your car. Our intake manifold will increase engine performance and give you a smoother, quicker acceleration. It's also designed with a larger throttle body that helps lower resistance while still maintaining the same air flow. Check below for all the details.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"With Cobb Accessport and Dundon Pro Tune","offer_id":44816214786223,"sku":"200-30009","price":11505.0,"currency_code":"USD","in_stock":true},{"title":"Without Cobb Accessport and Dundon Pro Tune","offer_id":44816214818991,"sku":"200-30005","price":9515.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/997-gt3-resonance-air-intake-plenum-w-100mm-throttle-body-594882.jpg?v=1626998286"},{"product_id":"997-2-gt3-roll-bar","title":"996\/997 GT3 Roll Bar","description":"\u003cp\u003eWe like Cantrell Motorsports Half Cages for our customers.\u003c\/p\u003e\u003cp\u003eFrom their website:\u003c\/p\u003e\u003cp\u003eThe bars were designed with rear points to mount to the vehicle shock towers, \u003ci\u003enot\u003c\/i\u003e the rear seat belt mounts like other brands! When a bolt-in bar is mounted to seat belt mounts, under an impact or roll over situation, your safety is greatly sacrificed due to the tendency to sheer off the mount point. \u003ci\u003eSafety\u003c\/i\u003e is our number one concern which has led us to mounting to the shock towers.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e1.75” X .095″ wall Chromoly roll bar tubing\u003c\/li\u003e\n\u003cli\u003eFixture welded in our own a jig\u003c\/li\u003e\n\u003cli\u003eTig welded\u003c\/li\u003e\n\u003cli\u003e¼” thick mounting brackets for added strength and rigidity\u003c\/li\u003e\n\u003cli\u003eA true bolt-in roll bar; not just a harness bar which will provide no safety other than a place to mount your belts\u003c\/li\u003e\n\u003cli\u003eWorks with factory seats.\u003c\/li\u003e\n\u003cli\u003eOur \u003cstrong\u003eStandard\u003c\/strong\u003e powder coat color is T002-BK08 Black #27038 20% Gloss powder coat included. Refer to Color chart next row.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom powder coat\u003c\/strong\u003e color there is an additional $250 charge. See \u003ca href=\"http:\/\/cantrellmotorsport.com\/wp-content\/uploads\/2015\/01\/PowderBrochure.pdf\"\u003e\u003cstrong\u003eColor Chart\u003c\/strong\u003e\u003c\/a\u003e here\u003c\/li\u003e\n\u003cli\u003eYour roll bar can be professionally painted any color for an additional charge. Contact us for a quote.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003ePATENT PENDING DESIGN\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eWe highly recommend CMS rollbars are only installed by shops that have experience installing roll bars. \u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003e\u003ca href=\"http:\/\/cantrellmotorsport.com\/wp-content\/uploads\/2015\/01\/PowderBrochure.pdf\"\u003e\u003cstrong\u003eIf you would like to choose a Custom powder coat color, please refer to the linked Color Chart and note the Color and Color Code you desire at the time of Checkout\u003c\/strong\u003e\u003c\/a\u003e\u003cstrong\u003e.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIf an order includes smaller items which will fit in our Roll Bar box, your freight charge will corrected to the $300 Truck Rate price when your order processed.\u003c\/p\u003e\u003cp\u003eFor multiple quantities of any Bolt-in Rollbars to the same location, please contact us for a freight quote.\u003c\/p\u003e\u003cp\u003eTruck Freight out of the USA: any duties, taxes and\/or fees are paid by the purchaser.\u003c\/p\u003e\u003cp\u003eInstall instructions can be viewed here: \u003ca href=\"https:\/\/cantrellmotorsport.com\/wp-content\/uploads\/2018\/07\/CMS-997-rollbar-install.doc\"\u003ehttps:\/\/cantrellmotorsport.com\/wp-content\/uploads\/2018\/07\/CMS-997-rollbar-install.doc\u003c\/a\u003e\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"996 \/ Satin Black","offer_id":42792821850287,"sku":"700-RB996-7","price":3500.0,"currency_code":"USD","in_stock":true},{"title":"996 \/ Custom Powdercoat","offer_id":42792821883055,"sku":"700-RB996-8","price":3500.0,"currency_code":"USD","in_stock":true},{"title":"996 \/ Paint to Sample Match","offer_id":42792821915823,"sku":"700-RB996-9","price":4750.0,"currency_code":"USD","in_stock":true},{"title":"997 \/ Satin Black","offer_id":42792821948591,"sku":"700-RB996-10","price":3500.0,"currency_code":"USD","in_stock":true},{"title":"997 \/ Custom Powdercoat","offer_id":42792821981359,"sku":"700-RB996-11","price":3500.0,"currency_code":"USD","in_stock":true},{"title":"997 \/ Paint to Sample Match","offer_id":42792822014127,"sku":"700-RB996-12","price":4750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/996997-gt3-roll-bar-836175.jpg?v=1615920318"},{"product_id":"997-1-gt3rs-long-tube-street-header-exhaust-system","title":"997.1 GT3RS Long Tube Street Header Exhaust System","description":"\u003cp\u003eDundon Street (Catted) tuned length headers and valved side delete exhaust system for the 997.1 GT3 and GT3RS are available now! We were able to keep all of the things that people love about our race headers; keep scrolling! *V2.0 Headers shown - Updated 2021\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThe Dundon 997 GT3\/RS Long Tube Street Header Exhaust System\u003c\/strong\u003e\u003cbr\u003e \u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eless weight\u003c\/li\u003e\n\u003cli\u003emore power,\u003c\/li\u003e\n\u003cli\u003egreat sound,\u003c\/li\u003e\n\u003cli\u003equiet when you want it to be\u003c\/li\u003e\n\u003cli\u003eno drone\u003c\/li\u003e\n\u003cli\u003elifetime structural warranty\u003c\/li\u003e\n\u003cli\u003e100% 30day money back guarantee\u003cul\u003e\u003cli\u003eif you try it and don't like it, send it back we'll give you your money back!\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eConvertible to no cats with the swappable test pipes for track days (available separately).\u003cbr\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWe use 321SS (a superior grade of Stainless steel to the cheaper 304SS) and use a metal core spiral wound 200CPSI catalytic converter.  All our products are manufactured in the USA in our shop in Gig Harbor, WA.\u003c\/p\u003e\u003cp\u003eBy routing the primaries up and positioning the catalytic converter more vertical we were able to retain 99% of the primary length of the race system. This is how we are able to achieve 25whp gains on the 997.1 GT3\/RS\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"2.5\" (for OEM Muffler)","offer_id":46581273198767,"sku":"100-30098","price":8810.0,"currency_code":"USD","in_stock":true},{"title":"3.0\" (for Dundon Muffler)","offer_id":46581334311087,"sku":"100-30099","price":8810.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/997.1-2_GT3_Long_Tube_Street_Header_Exhaust_System-2.jpg?v=1762465475"},{"product_id":"997-2-gt3-long-tube-street-header-exhaust-system","title":"997.2 GT3 Long Tube Street Header Exhaust System","description":"\u003cp\u003eDundon Street (Catted) tuned length headers and valved side delete exhaust system for the 997.2 GT3 are available now! We were able to keep all of the things that people love about our race headers: scroll down to learn more! *V2.0 Headers shown - Updated 2021\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eThe Dundon 997.2 GT3 Long Tube Street Header Exhaust System\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eless weight\u003c\/li\u003e\n\u003cli\u003emore power,\u003c\/li\u003e\n\u003cli\u003egreat sound,\u003c\/li\u003e\n\u003cli\u003equiet when you want it to be\u003c\/li\u003e\n\u003cli\u003eno drone\u003c\/li\u003e\n\u003cli\u003elifetime structural warranty\u003c\/li\u003e\n\u003cli\u003e100% 30day money back guarantee\u003cul\u003e\u003cli\u003eif you try it and don't like it, send it back we'll give you your money back!\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eConvertible to no cats with the swappable test pipes for track days (available separately).\u003cbr\u003e \u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWe use 321SS (a superior grade of Stainless steel to the cheaper 304SS) and use a metal core spiral wound 200CPSI catalytic converter.  All our products are mfg in the USA in our shop in Gig Harbor, WA.\u003c\/p\u003e\u003cp\u003eBy routing the primaries up and positioning the catalytic converter more vertical we were able to retain 99% of the primary length of the race system. This is how we are able to achieve 27whp gains on the 997.2 GT3\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"2.5\" (for OEM Muffler)","offer_id":46581273264303,"sku":"100-30098","price":8810.0,"currency_code":"USD","in_stock":true},{"title":"3.0\" (for Dundon Muffler)","offer_id":46581334278319,"sku":"100-30099","price":8810.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/9972-gt3-long-tube-street-header-exhaust-system-1735383.jpg?v=1762300576"},{"product_id":"997-2-gt3-rs-dual-cone-single-opening-carbon-fiber-airbox","title":"997.2 GT3 Dual Cone Carbon Fiber Airbox","description":"\u003cp\u003eFree up power and add some beauty to your engine bay with the Dundon Motorsports Carbon Fiber Dual Cone Airbox. On a stock car this airbox will free up about 5-7whp. On a Dundon Resonance Intake equipped car, this airbox is good for about 8-10 whp!\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003eWe based this design on the fabled 997 4.0L GT3RS.  It features dual conical air filters from the 4.0RS.  In order for you to keep your stock decklid we created a balance pipe in the bottom area of the airbox to allow air to flow to both filters equally.\u003c\/p\u003e\n\u003cp\u003eNote Fan Part 997.624.056.05 is required for fitment on cars with the original fan (most of them have been replaced by 997.624.056.05 by now...)  If you need to source it or are unsure, you can order our option that includes a new fan slim line decklid fan from Porsche\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003eWe based this design on the fabled 997 4.0L GT3RS.  It features dual conical air filters from the 4.0RS.  In order for you to keep your stock decklid we created a balance pipe in the bottom area of the airbox to allow air to flow to both filters equally.\u003c\/p\u003e\u003cp\u003eNote Fan Part 997.624.056.05 is required for fitment on cars with the original fan (most of them have been replaced by 997.624.056.05 by now...)  If you need to source it or are unsure, you can order our option that includes a new fan slim line decklid fan from Porsche\u003c\/p\u003e\u003cp\u003eBelow is the OE fan the car came with.\u003c\/p\u003e\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/ThickFan_480x480.jpg?v=1582135999\" alt=\"Thick Fan\"\u003e\u003c\/figure\u003e\u003cp\u003eBelow is the upgraded thin line fan:\u003c\/p\u003e\u003cfigure\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/ThinFan_480x480.jpg?v=1582136039\" alt=\"Thin Fan\"\u003e\u003c\/figure\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":12058379583524,"sku":"200-30027","price":3195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/9972-gt3rs-dual-cone-single-opening-carbon-fiber-air-intake-750358.jpg?v=1627084862"},{"product_id":"991-2-gt3-dual-reverse-cone-airbox-for-93mm-throttle-body-and-dundon-center-plenum","title":"Intake Kit: Dual Cone Airbox, 93mm Throttle Body, Dundon Center Plenum (991.2 GT3)","description":"\u003cp\u003eLet your 991.2 GT3 breathe. Our full intake kit replaces the restrictive factory airbox and 82mm throttle body with the Dundon Dual Reverse Cone Airbox, Dundon Center Plenum and 93mm throttle body: more air flow, more capacity, and more of that intake sound.\u003c\/p\u003e\n\u003cp\u003eIn testing the 991.2 GT3 and RS we found the air intake to be restrictive. The airbox is shared with the 991.1 Carrera S, and the 82mm throttle body has been the same since the 996 GT3. Neither of those is a 500 hp car. We measure the restriction by comparing atmospheric pressure outside the plenum to the pressure inside. Ideally there is no difference. This kit reduces pressure losses from about 0.6 psi to 0.1 psi.\u003c\/p\u003e\n\u003cp\u003eBy reducing the pressure losses in the intake and allowing a more free flow into the engine, the engine makes power two ways. First, less engine power is used overcoming the parasitic losses of the stock intake tract. Second, we're able to get more high-pressure air to the intake valve to cram more air into the cylinder. Both translate into more power, and on a car that uses ram air to its advantage (scoops on the decklid), the gains are more than can be measured on a static dyno.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit includes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDundon Dual Reverse Cone Airbox: 4.96 sq ft of filter area versus 1.77 sq ft stock, 280% more, so air moves more slowly through the filters with less pressure drop across the element\u003c\/li\u003e\n\u003cli\u003eDundon Center Plenum\u003c\/li\u003e\n\u003cli\u003e93mm throttle body, 28.6% more area than the factory 82mm unit, with adapter harness\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOn a car already running our Street Headers, the intake kit adds roughly 10 to 15 whp and up to 10 lb-ft at the wheels. Headers and intake together make up our 991.2 GT3 D3 Power Package: up to 47 lb-ft and 38 whp on PDK cars, 53 lb-ft and 31 whp on manuals, with peak output over 473 whp.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":12108077793316,"sku":"200-30002","price":8995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/Intake-Kit-Dual-Cone-Airbox-93mm-Throttle-Body-Dundon-Center-Plenum-991--1x1.jpg?v=1789759177"},{"product_id":"981-porsche-cayman-bolt-in-roll-bar","title":"981\/718 GT4\/GT4RS Porsche Cayman Cantrell Bolt-In Roll Bar","description":"\u003cul\u003e\n\u003cli\u003eOnly weighs 35 lbs!!\u003c\/li\u003e\n\u003cli\u003eWe use 1.75″ x .095″ wall Chromoly Roll Bar tubing\u003c\/li\u003e\n\u003cli\u003eTig welded\u003c\/li\u003e\n\u003cli\u003eInstructions and interior cutout templates included. Very minimal modification needed.\u003c\/li\u003e\n\u003cli\u003eRear points mount to vehicle shock towers, main hoop mounts to upper bulkhead factory mounts. no drilling into floor.\u003c\/li\u003e\n\u003cli\u003eA true bolt-in roll bar, Not just a harness bar\u003c\/li\u003e\n\u003cli\u003eDesigned to work with factory seats\u003c\/li\u003e\n\u003cli\u003eAllows for full seat travel.\u003c\/li\u003e\n\u003cli\u003eColors – Our \u003cstrong\u003eStandard\u003c\/strong\u003e powder coat color is T002-BK08 Black #27038 20% Gloss powder coat included. Refer to Color chart next row.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCustom powder coat\u003c\/strong\u003e color there is an additional $350 charge. See \u003ca href=\"http:\/\/cantrellmotorsport.com\/wp-content\/uploads\/2015\/01\/PowderBrochure.pdf\"\u003e\u003cstrong\u003eColor Chart\u003c\/strong\u003e\u003c\/a\u003e here.\u003c\/li\u003e\n\u003cli\u003eYour roll bar can be professionally painted any color for an additional charge. Contact us for a quote.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dundon Motorsports","offers":[{"title":"Satin Black","offer_id":42792828469423,"sku":"700-RB981-1","price":3500.0,"currency_code":"USD","in_stock":true},{"title":"Custom Powdercoat","offer_id":42792828502191,"sku":"700-RB981-2","price":3500.0,"currency_code":"USD","in_stock":true},{"title":"Paint to Sample","offer_id":42792828534959,"sku":"700-RB981-3","price":4750.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/981-718-GT4-GT4RS-Porsche-Cayman-Cantrell-Bolt-In-Roll-Bar-1x1.jpg?v=1789768568"},{"product_id":"991-2-oem-gt3-touring-airbox-for-991-1-gt3-airbox","title":"991.2 OEM GT3 Touring Air Intake for 991.1 GT3 and 911R","description":"\u003cp\u003eA bolt in Dual Cone intake for your 991.1 GT3 and 911R!\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":12264185954340,"sku":"205-991-110-022-99","price":5995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/991-2-OEM-GT3-Touring-Air-Intake-for-991-1-GT3-and-911R-1x1.jpg?v=1789768083"},{"product_id":"991-2-gt3-touring-long-tube-street-header-exhaust-system","title":"991.2 GT3 Touring Long Tube Street Header Exhaust System","description":"\u003cp\u003eAchieve 50lbft and almost 20whp gains on your 991.2 GT3 Touring with our Long Tube Street Header Exhaust System.\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003e* Muffler shown is not included with the system, only to see how the system goes together!\u003cbr\u003e \u003c\/p\u003e \u003cul\u003e\n\u003cli\u003eless weight\u003c\/li\u003e\n\u003cli\u003emore power\u003c\/li\u003e\n\u003cli\u003egreat sound\u003c\/li\u003e\n\u003cli\u003equiet when you want it to be\u003c\/li\u003e\n\u003cli\u003eno drone\u003c\/li\u003e\n\u003cli\u003elifetime structural warranty\u003c\/li\u003e\n\u003cli\u003e100% 30day money back guarantee\u003cul\u003e\u003cli\u003eif you try it and don't like it, send it back we'll give you your money back!\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eWe use 321SS (a superior grade of Stainless steel to the cheaper 304SS) and use a metal core 200CPSI catalytic converter.  All our products are manufactured in the USA in our shop in Gig Harbor, WA.\u003c\/p\u003e\u003cp\u003eBy routing the primaries up and positioning the catalytic converter more vertical we were able to retain 99% of the primary length of the race system. This is how we are able to achieve 50lbft and almost 20whp gains on the 991.2 GT3 Touring with it's known intake restrictions \u003c\/p\u003e\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/991_2_GT3_Touring_Street_Headers_480x480.jpg?v=1568738511\" alt=\"\"\u003e\u003c\/figure\u003e\u003cp\u003e\u003cbr\u003e\u003cbr\u003e \u003c\/p\u003e\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/IMG_4317_480x480.jpg?v=1579218490\" alt=\"\"\u003e\u003c\/figure\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003e\u003ciframe width=\"560\" height=\"315\" src=\"https:\/\/www.youtube.com\/embed\/y6X8pTdubkQ\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"991.2 GT3 Touring Long Tube Street Header Exhaust System - 2.5\" Outlet (For use with OEM muffler)","offer_id":46581272805551,"sku":"100-30022","price":9265.0,"currency_code":"USD","in_stock":true},{"title":"991.2 GT3 Touring Long Tube Street Headers Exhaust System - 3.0\" Outlet","offer_id":46581334245551,"sku":"100-30023","price":9265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/9911-gt3-long-tube-street-header-exhaust-system-9568578.jpg?v=1761862553"},{"product_id":"d2-street-bundle","title":"Street Header\/Lifetime Muffler Power Package (2007-2008 997.1 GT3)","description":"\u003cp\u003eAdd Power and great sound and experience your Porsche's true capabilities with the Dundon Power Package. Intentionally designed to bring big power with and distinct sound we all love, this kit is perfectly tailored to add more muscle, better sound, and increased performance to your specific GT car.\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003ePackage Includes:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eStreet Headers\u003c\/li\u003e\n\u003cli\u003eLifetime Muffler\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dundon Motorsports","offers":[{"title":"Loud Muffler PVD Black Tips","offer_id":46581273100463,"sku":"100-30043","price":14435.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler PVD Black Tips","offer_id":46581334081711,"sku":"100-30045","price":14435.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler Ti Tips","offer_id":46581334114479,"sku":"100-30044","price":15200.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler Ti Tips","offer_id":46581334147247,"sku":"100-30046","price":15200.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud)","offer_id":46581334180015,"sku":"100-30047","price":21420.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe","offer_id":46581334212783,"sku":"100-30049","price":17540.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/street-headerlifetime-muffler-power-package-2007-2008-9971-gt3-4428819.jpg?v=1762632673"},{"product_id":"d3-street-bundle","title":"D3 Street Header\/93mm Intake Kit\/Optional Lifetime Muffler Power Package (2014-2016 991.1 GT3)","description":"\u003cp\u003eAdd Power and great sound and experience your Porsche’s true capabilities with the Dundon Power Package. Intentionally designed to bring big power with and distinct sound we all love, this kit is perfectly tailored to add more muscle, better sound, and increased performance to your specific GT car.\u003c\/p\u003e\n\u003ch3\u003eTechnical Description\u003c\/h3\u003e\n\u003cp\u003e38lbft and 50whp gains (with Race Headers)\u003c\/p\u003e\n\u003cp\u003eIncludes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStreet Headers\u003c\/li\u003e\n\u003cli\u003eOEM Touring Airbox\u003c\/li\u003e\n\u003cli\u003e93mm TB\/Center Plenum\u003c\/li\u003e\n\u003cli\u003eOptional Lifetime Muffler\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOnly Race Header\/Lifetime Muffler\/ Touring Airbox\/ 93mm Center Plenum Dyno available.\u003c\/p\u003e\n\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/1_991.1_stock_vs_race_loud_93TB_Touring_Air_Box_MAX_480x480.png?v=1579224310\" alt=\"\"\u003e\u003c\/figure\u003e\u003cfigure class=\"image\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/sslremote.php_480x480.jpg?v=1579222923\" alt=\"\"\u003e\u003c\/figure\u003e","brand":"Dundon Motorsports","offers":[{"title":"No Muffler","offer_id":31641800474660,"sku":"100-30206","price":18465.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler (3.0\" Outlet) PVD Black Tips","offer_id":31641800507428,"sku":"100-30198","price":24095.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler (3.0\" Outlet) PVD Black Tips","offer_id":31641800540196,"sku":"100-30200","price":24095.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler (3.0\" Outlet) Ti Tips","offer_id":31641800572964,"sku":"100-30199","price":24855.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler (3.0\" Outlet) Ti Tips","offer_id":31641800605732,"sku":"100-30201","price":24855.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud)","offer_id":42295638982831,"sku":"100-30202","price":31075.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe","offer_id":42295639113903,"sku":"100-30204","price":27195.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/d3-street-header93mm-intake-kitoptional-lifetime-muffler-power-package-2014-2016-9911-gt3-3946096.jpg?v=1761720813"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/collections\/all-1686080.png?v=1772751439","url":"https:\/\/www.dundonmotorsports.com\/collections\/all-1.oembed?page=28","provider":"Dundon Motorsports","version":"1.0","type":"link"}