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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\u003cp\u003e+ 47LBFT AND +38WHP! We continue to develop and find power in the 991 NA GT Cars as we love the challenge of finding all the little things the accountants made the engineers back off on at the factory.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe 991.1\/991.2 GT3RS was first up, then we did the 991.2 GT3 Touring, Now the 991.2 GT3 (tested a pdk, applies to manuals as well). Next will be the 991.1 GT3 (as soon as the customer can get his car out of his garage due to torn up driveway...).\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003eResults from a 991.2 GT3 PDK car. *from our testing a manual reads about ~10whp higher as there is less parasitic losses in the manual trans than the PDK. We'll work on getting a Winged Manual car to test, anyone in the NW interested contact us!\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e \u003c\/p\u003e\n\u003cp\u003eReran the numbers and 47lbft gains max and 38whp gains max with 475whp peak power!60-130 of a Customers 991.2 GT3 Stock\u003c\/p\u003e\n\u003cp\u003e60-130 of a customers car after the performance package\u003c\/p\u003e\n\u003cp\u003eProven performance you can feel!\u003c\/p\u003e\n\u003cp\u003e\u003cbr\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. And Second we're able to get more high pressure air to the intake valve to cram in more air into the cylinder. Both of these translate into more power and on a car that uses Ram air to it's advantage (scoops on the decklid), the gains are more than can be measured on a static dyno.\u003cbr\u003e\u003cbr\u003e \u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"No Muffler (2.5\" Outlets)","offer_id":46581273034927,"sku":"100-30040","price":17575.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler (3.0\" Outlets) PVD Black Tips","offer_id":46581333426351,"sku":"100-30032","price":23575.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler (3.0\" Outlets) PVD Black Tips","offer_id":46581333459119,"sku":"100-30034","price":23685.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler (3.0\" Outlets) Titanium Tips","offer_id":46581333491887,"sku":"100-30033","price":24155.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler (3.0\" Outlets) Titanium Tips","offer_id":46581333524655,"sku":"100-30035","price":24155.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud)","offer_id":46581333557423,"sku":"100-30036","price":29995.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe","offer_id":46581333590191,"sku":"100-30038","price":24445.0,"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-2019-2020-9912-gt3rs-1039964.jpg?v=1762891356"},{"product_id":"d2-street-bundle-2019-2020-991-2-gt3rs","title":"Street Header\/Lifetime Muffler Power Package (2019-2020 991.2 GT3RS)","description":"","brand":"Dundon Motorsports","offers":[{"title":"Loud Muffler PVD Black Tips","offer_id":46581273002159,"sku":"100-30024","price":15195.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler PVD Black Tips","offer_id":46581333262511,"sku":"100-30026","price":15195.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler Ti Tips","offer_id":46581333295279,"sku":"100-30025","price":15940.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler Ti Tips","offer_id":46581333328047,"sku":"100-30027","price":15940.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud)","offer_id":46581333360815,"sku":"100-30028","price":21695.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe","offer_id":46581333393583,"sku":"100-30030","price":16470.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/street-headerlifetime-muffler-power-package-2019-2020-9912-gt3rs-7535367.jpg?v=1761886388"},{"product_id":"d3-street-bundle-2019-2020-991-2-gt3rs","title":"D3 Street Header\/93mm Intake Kit\/Optional Lifetime Muffler Power Package (2019-2020 991.2 GT3RS)","description":"","brand":"Dundon Motorsports","offers":[{"title":"No Muffler","offer_id":46581273067695,"sku":"100-30040","price":17575.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler (3.0\" Outlets) PVD Black Tips","offer_id":46581333065903,"sku":"100-30032","price":22975.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler (3.0\" Outlets) PVD Black Tips","offer_id":46581333098671,"sku":"100-30034","price":23575.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler (3.0\" Outlets) Ti Tips","offer_id":46581333131439,"sku":"100-30033","price":23685.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler (3.0\" Outlets) Ti Tips","offer_id":46581333164207,"sku":"100-30035","price":24155.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud)","offer_id":46581333196975,"sku":"100-30036","price":29995.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe","offer_id":46581333229743,"sku":"100-30038","price":24445.0,"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-2019-2020-9912-gt3rs-1039964.jpg?v=1762891356"},{"product_id":"d2-street-bundle-2018-2019-991-2-gt3","title":"Street Header\/Lifetime Muffler Power Package (2018-2019 991.2 GT3)","description":"\u003cp\u003eDundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991.2 GT3! We were able to keep all of the things that people love about our race headers:\u003c\/p\u003e\n\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\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eif you try it and don't like it, send it back we'll give you your money back!\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\n\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.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe Dundon Street Headers on 991.2 GT3\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e477 whp Peak \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e20-25whp gains at 8200-8500 rpm\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e40lbft-46lbft gains at 3000-5000 rpm\u003c\/strong\u003e\u003c\/p\u003e\n\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! To that end, see the dyno below!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e991.2 GT3 Dundon Street (Catted) 477whp peak \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\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\n\u003cp\u003eDundon 991 GT3\/RS showing length of primaries and routing required to fit the cat\u003c\/p\u003e\n\u003cp\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...  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTake a listen to it here!\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.dundonmotorsports.com\/blogs\/articles\/991-2-gt3rs-with-dundon-street-headers-and-lifetime-loud-muffler-sound-check\" target=\"_self\"\u003eDundon 991.2 GT3 and GT3RS Street Header-Loud Muffler Sound Check\u003c\/a\u003e\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Loud Muffler PVD Black Tips","offer_id":46581272936623,"sku":"100-30024","price":15195.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler PVD Black Tips","offer_id":46581332902063,"sku":"100-30026","price":15195.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler Ti Tips","offer_id":46581332934831,"sku":"100-30025","price":15940.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler Ti Tips","offer_id":46581332967599,"sku":"100-30027","price":15940.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud)","offer_id":46581333000367,"sku":"100-30028","price":21695.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe","offer_id":46581333033135,"sku":"100-30030","price":16470.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/100-30024-6.jpg?v=1761863971"},{"product_id":"d3-street-bundle-2018-2019-991-2-gt3","title":"D3 Street Header\/93mm Intake Kit\/Optional Lifetime Muffler Power Package (2018-2019 991.2 GT3)","description":"\u003cp\u003eThis is the most complete, well-rounded power package around for the 991.2 GT3 4.0L. 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On a car that uses \"Ram-Air\" to it's advantage (scoops on the decklid), the gains are \u003cstrong\u003emore\u003c\/strong\u003e than can be measured on a static dyno. Finally, we utilize Cobb's Accessport to free up the remaining power that the ECU has been holding back. The result? The car drives like an absolute rocket!!  Kit Includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDundon Dual Reverse Cone Airbox\u003c\/li\u003e\n\u003cli\u003eDundon Center Plenum with 93mm Throttle Body\u003c\/li\u003e\n\u003cli\u003eComplete Dundon Exhaust\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eStreet Headers\u003c\/li\u003e\n\u003cli\u003eHigh Flow Cats\u003c\/li\u003e\n\u003cli\u003eValves\u003c\/li\u003e\n\u003cli\u003eChoice of Muffler: \u003c\/li\u003e\n\u003cli\u003eStainless Steel with either Black or Titanium tips (Classic Dundon sound, minimal drone and quite usable)\u003c\/li\u003e\n\u003cli\u003eTitanium Ultralight with Loud Inserts (Quieter at low RPM, Zero drone, High-pitch scream at full throttle)\u003c\/li\u003e\n\u003cli\u003eInconel Megaphone Mini Crack Pipe (Full Race car most of the time, valves do a little to take the edge off)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Dundon Motorsports","offers":[{"title":"No Muffler (2.5\" Outlets)","offer_id":31641778421796,"sku":"100-30196","price":17705.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler (3.0\" Outlets) PVD Black Tips","offer_id":31641778454564,"sku":"100-30188","price":23685.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler (3.0\" Outlets) PVD Black Tips","offer_id":31641778487332,"sku":"100-30190","price":23685.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler (3.0\" Outlets) Ti Tips","offer_id":31641778520100,"sku":"100-30189","price":24295.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler (3.0\" Outlets) Ti Tips","offer_id":31641778552868,"sku":"100-30191","price":24295.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud)","offer_id":42295639703727,"sku":"100-30192","price":30675.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe","offer_id":42295639998639,"sku":"100-30194","price":25525.0,"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-2018-2019-9912-gt3-1100018.jpg?v=1762300578"},{"product_id":"d2-street-bundle-2010-2011-997-2-gt3","title":"Street Header\/Lifetime Muffler Power Package (2010-2011 997.2 GT3)","description":"","brand":"Dundon Motorsports","offers":[{"title":"Loud Muffler PVD Black Tips","offer_id":46581273133231,"sku":"100-30043","price":15195.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler PVD Black Tips","offer_id":46581332738223,"sku":"100-30045","price":15195.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler Ti Tips","offer_id":46581332770991,"sku":"100-30044","price":15940.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler Ti Tips","offer_id":46581332803759,"sku":"100-30046","price":15940.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud)","offer_id":46581332836527,"sku":"100-30047","price":21695.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe","offer_id":46581332869295,"sku":"100-30049","price":16470.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/street-headerlifetime-muffler-power-package-2010-2011-9972-gt3-4031645.jpg?v=1762632675"},{"product_id":"d4-street-bundle-2010-2011-997-2-gt3","title":"D4 Street Power Package (2010-2011 997.2 GT3)","description":"\u003cp\u003ePackage Includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eStreet Headers (w\/ cats)\u003c\/li\u003e\n\u003cli\u003eCobb AP w\/ Pro Tune\u003c\/li\u003e\n\u003cli\u003e997 GT3 Intake Manifold w\/ 93mm Throttle Body\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe Dundon Street headers by itself give a huge improvement to performance and the overall sound of the system, combined with the Cobb AP Pro Tune this will bring an even bigger improvement in the performance all around but especially in the mid range. This performance increase is even further optimized with the increased air volume with the engineered Dundon Resonance Intake Manifold with a larger throttle body of 93mm, exponentially bigger compared to stock 82mm.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eBase package is fantastic as is, but we would all like better! This package comes with even more optimizing options.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOptional Items\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDundon Lifetime Muffler (Quiet or Loud, your choice of tips)\u003c\/li\u003e\n\u003cli\u003eDundon Dual Cone Carbon Fiber Air Intake\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe optional items are all about giving your vehicle that little push of improvement that can separate yourself from others.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOur lifetime mufflers are all about well… longevity! A lifetime guarantee even including track use allows you to have worry free use while giving you two different sounds depending on your preference. The Quiet is for those customers looking for no drone* while cruising and to quiet the car at full boogie to attenuate some of the dB levels on the track or on the street.  The Loud is the muffler for those looking for no drone* at cruise, but a pronounced bark when getting on it!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe two two tip options are all about what flavor of sound you're looking for!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNot to sell you too much, but remember that intake system included with the package? The one with the bigger throttle body? Well optimize that size with the lighter and larger carbon fiber airbox! Just with the headers you can see an increase of 8-10 whp.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Lifetime Muffler - Loud \/ Titanium \/ Dundon Dual Cone Carbon Airbox","offer_id":39264138625199,"sku":"100-30053","price":31295.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Loud \/ Titanium \/ None (OEM Airbox)","offer_id":39264138657967,"sku":"100-30052","price":27985.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Loud \/ PVD Black \/ Dundon Dual Cone Carbon Airbox","offer_id":39264138690735,"sku":"100-30051","price":30675.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Loud \/ PVD Black \/ None (OEM Airbox)","offer_id":39264138723503,"sku":"100-30050","price":27335.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Quiet \/ Titanium \/ Dundon Dual Cone Carbon Airbox","offer_id":39264138821807,"sku":"100-30057","price":31295.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Quiet \/ Titanium \/ None (OEM Airbox)","offer_id":39264138854575,"sku":"100-30056","price":27985.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Quiet \/ PVD Black \/ Dundon Dual Cone Carbon Airbox","offer_id":39264138887343,"sku":"100-30055","price":30675.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Quiet \/ PVD Black \/ None (OEM Airbox)","offer_id":39264138920111,"sku":"100-30054","price":27335.0,"currency_code":"USD","in_stock":true},{"title":"None (OEM Muffler) \/ None (OEM Muffler) \/ Dundon Dual Cone Carbon Airbox","offer_id":39264139149487,"sku":"100-30065","price":24695.0,"currency_code":"USD","in_stock":true},{"title":"None (OEM Muffler) \/ None (OEM Muffler) \/ None (OEM Airbox)","offer_id":39264139182255,"sku":"100-30064","price":21415.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud) \/ Titanium \/ Dundon Dual Cone Carbon Airbox","offer_id":42295666049199,"sku":"100-30059","price":37050.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud) \/ Titanium \/ None (OEM Airbox)","offer_id":42295666081967,"sku":"100-30058","price":33765.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe \/ None (OEM Muffler) \/ Dundon Dual Cone Carbon Airbox","offer_id":42295666114735,"sku":"100-30063","price":31945.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe \/ None (OEM Muffler) \/ None (OEM Airbox)","offer_id":42295666147503,"sku":"100-30062","price":28655.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/d4-street-power-package-2010-2011-9972-gt3-5477660.jpg?v=1761803554"},{"product_id":"d2-street-bundle-2011-997-2-gt3rs-4-0","title":"Street Header\/Lifetime Muffler Power Package (2011 997.2 GT3RS 4.0)","description":"\u003cp\u003e\u003cspan\u003eAdd Power and great sound to 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\/span\u003e\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Loud Muffler PVD Black Tips","offer_id":46581273460911,"sku":"100-30246","price":15195.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler PVD Black Tips","offer_id":46581332574383,"sku":"100-30248","price":15195.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler Ti Tips","offer_id":46581332607151,"sku":"100-30247","price":15940.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler Ti Tips","offer_id":46581332639919,"sku":"100-30249","price":15940.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud)","offer_id":46581332672687,"sku":"100-30250","price":21695.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe","offer_id":46581332705455,"sku":"100-30252","price":16470.0,"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-gt3rs-743197.jpg?v=1740760144"},{"product_id":"d4-street-bundle-2011-997-2-gt3rs-4-0","title":"D4 Street Power Package (2011 997.2 GT3RS 4.0)","description":"","brand":"Dundon Motorsports","offers":[{"title":"Lifetime Muffler - 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This package comes with even more optimizing options.\u003c\/p\u003e\n\u003cp\u003eOptional Items\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDundon Lifetime Muffler (Quiet or Loud, your choice of tips)\u003c\/li\u003e\n\u003cli\u003eDundon Dual Cone Carbon Fiber Air Intake\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe optional items are all about giving your vehicle that little push of improvement that can separate yourself from others.\u003c\/p\u003e\n\u003cp\u003eOur lifetime mufflers are all about well… longevity! A lifetime guarantee even including track use allows you to have worry free use while giving you two different sounds depending on your preference. The Quiet is for those customers looking for no drone* while cruising and to quiet the car at full boogie to attenuate some of the dB levels on the track or on the street.  The Loud is the muffler for those looking for no drone* at cruise, but a pronounced bark when getting on it!\u003c\/p\u003e\n\u003cp\u003eThe two two tip options are all about what flavor of sound you're looking for!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eNot to sell you too much, but remember that intake system included with the package? The one with the huge throttle body? Well optimize that size with the lighter and larger carbon fiber airbox! Just with the headers you can see an increase of 8-10 whp.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Lifetime Muffler - Loud \/ Exhaust Tips - Titanium \/ None (Use OE Airbox)","offer_id":38417511121071,"sku":"100-30068","price":27985.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Loud \/ Exhaust Tips - Titanium \/ Dundon Dual Cone Carbon Airbox","offer_id":38417511153839,"sku":"100-30069","price":31295.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Loud \/ Exhaust Tips - Black PVD \/ None (Use OE Airbox)","offer_id":38417511186607,"sku":"100-30066","price":27335.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Loud \/ Exhaust Tips - Black PVD \/ Dundon Dual Cone Carbon Airbox","offer_id":38417511219375,"sku":"100-30067","price":30675.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Quiet \/ Exhaust Tips - Titanium \/ None (Use OE Airbox)","offer_id":38417511317679,"sku":"100-30072","price":27985.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Quiet \/ Exhaust Tips - Titanium \/ Dundon Dual Cone Carbon Airbox","offer_id":38417511350447,"sku":"100-30073","price":31295.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Quiet \/ Exhaust Tips - Black PVD \/ None (Use OE Airbox)","offer_id":38417511383215,"sku":"100-30070","price":27335.0,"currency_code":"USD","in_stock":true},{"title":"Lifetime Muffler - Quiet \/ Exhaust Tips - Black PVD \/ Dundon Dual Cone Carbon Airbox","offer_id":38417511415983,"sku":"100-30071","price":30675.0,"currency_code":"USD","in_stock":true},{"title":"None (Use OE Muffler) \/ Exhaust Tips - None \/ None (Use OE Airbox)","offer_id":38417511645359,"sku":"100-30080","price":21415.0,"currency_code":"USD","in_stock":true},{"title":"None (Use OE Muffler) \/ Exhaust Tips - None \/ Dundon Dual Cone Carbon Airbox","offer_id":38417511678127,"sku":"100-30081","price":24695.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud) \/ Exhaust Tips - Titanium \/ None (Use OE Airbox)","offer_id":42295668310191,"sku":"100-30074","price":33765.0,"currency_code":"USD","in_stock":true},{"title":"Titanium Ultralight Muffler (Loud) \/ Exhaust Tips - Titanium \/ Dundon Dual Cone Carbon Airbox","offer_id":42295668342959,"sku":"100-30075","price":37050.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe \/ Exhaust Tips - None \/ None (Use OE Airbox)","offer_id":42295668375727,"sku":"100-30078","price":28655.0,"currency_code":"USD","in_stock":true},{"title":"Inconel Mini Crack Pipe \/ Exhaust Tips - None \/ Dundon Dual Cone Carbon Airbox","offer_id":42295668408495,"sku":"100-30079","price":31945.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/100-30109-13.jpg?v=1761842635"},{"product_id":"intake-kit-991-1-gt3rs-dual-reverse-cone-airbox-93mm-throttle-body-dundon-center-plenum","title":"Intake Kit: Dual Reverse Cone Airbox, 93mm Throttle Body, Dundon Center Plenum (991.1 GT3RS)","description":"","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":31566054916132,"sku":"200-30003","price":8305.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/intake-kit-dual-reverse-cone-airbox-93mm-throttle-body-dundon-center-plenum-9911-gt3rs-957288.png?v=1650445916"},{"product_id":"intake-kit-991-2-gt3rs-dual-reverse-cone-airbox-93mm-throttle-body-dundon-center-plenum","title":"Intake Kit: Dual Reverse Cone Airbox, 93mm Throttle Body, Dundon Center Plenum (991.2 GT3RS)","description":"","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":31566056685604,"sku":"200-30003","price":8305.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/intake-kit-dual-reverse-cone-airbox-93mm-throttle-body-dundon-center-plenum-9912-gt3rs-330144.png?v=1650445916"},{"product_id":"intake-kit-991-1-gt3-dual-cone-airbox-93mm-throttle-body-dundon-center-plenum","title":"Intake Kit: OEM GT3 Touring Airbox, 93mm Throttle Body, Dundon Center Plenum (991.1 GT3 and 911R)","description":"\u003cp\u003eWe found in our exhaust development and testing of the 991.2 GT3 and RS that they are intake limited both through the factory airfilter box and through the 82mm Throttle body. A bit of history. The Bosch 82mm Throttle body is the largest Bosch makes and was used as far back as the 996 GT3 which made 380hp. The Air filter box used on the 991.2 GT3 and the 991.2 GT3RS originally showed up on the 2013 991 Carrera S which makes 350hp. Your 991.2 GT3 is rated at 500hp, so you can see just from these numbers that the intake side of things is a constriction.  \u003c\/p\u003e\n\u003cp\u003eIn our testing we found the the stock airbox to be about a 0.2-0.3psi pressure loss and the 82mm throttle body to be about 0.3-0.4psi of pressure loss. Naturally aspirated engines make power from the force of the atmosphere pushing air into the engine, so every 0.1 psi helps! Our combo of 93mm Throttle Body and Dual Cone Airbox reduces the losses to under 0.1psi.\u003c\/p\u003e\n\u003cp\u003eWe tried both our airbox and the 991.2 GT3 Touring Airbox and found our airbox to only be slightly better but the Touring box is less expensive, so we decided to include the Touring airbox for the single opening decklid cars. 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And over time, we found the factory muffler couldn’t keep up with the added performance our Headers provide. We set out to fix that. The result — Dundon’s GT3 Lifetime Center Muffler. We’ve tirelessly tested it to ensure it lasts a “lifetime” and produces maximum horsepower. With two sound ‘flavors’ — Quiet and Loud — you can decide how much noise you want without losing an ounce of performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eMost of us have experienced the many issues associated with both the stock Steel and Ti rear mufflers on our beloved 997.2 GT3RS. cracking, holes, not passing sound etc...  We've been reinforcing both the Steel and Ti versions for years after they crack and understand why they fail quite well.  We set out to fix the weakness of the OEM center muffler and include an option for those that want their car to pass the more and more prevalent dB restricted tracks without losing power.  We finalized the design and have tested at numerous tracks both for longevity and for dB reduction.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWe're happy to announce our GT3 Lifetime Center Muffler.  It's available in 2 \"flavors\" Quiet and Loud.  The Quiet is for those customers looking for no drone* while cruising and to quiet the car at full boogie to attenuate some of the dB levels on the track or on the street.  The Loud is the muffler for those looking for no drone* at cruise, but a pronounced bark when getting on it!\u003c\/p\u003e\n\u003cp\u003eWe've tested the Quiet on a 991 GT3 with side muffler deletes that was 104dB before the muffler and passing a 90dB day after .  We've tested on a stock 991 GT3 and the car passed where it hadn't previously. And we tested on a 997.2 GT3 that had not passed at Laguna and passed a 90dB day.  We've recorded the Orange GT3 Center Muffler in our own testing at 10-12dB reduction over the OEM GT3 Muffler.  All of the testing was done on cars WITHOUT GPS Exhaust flap closing devices.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLifetime Guaranteed including track use.\u003c\/li\u003e\n\u003cli\u003e321 Stainless Steel coupled with a high strength design.\u003c\/li\u003e\n\u003cli\u003eQuiet has no power loss (up to 450whp engines), sounds great and reduces sound levels 10-12dB over stock.\u003c\/li\u003e\n\u003cli\u003eLoud less restriction on higher powered cars (\u0026gt;450whp) and wicked flat six waiil!\u003c\/li\u003e\n\u003cli\u003e4\" rolled exhaust tips in PVD Black are Standard.  Titanium Tips are optional!  Add our Nurburgring Quiet Tips to further quiet your car down!\u003c\/li\u003e\n\u003cli\u003eDirect replacement of the OEM muffler, will fit existing 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And we tested on a 997.2 GT3 that had not passed at Laguna and passed a 90dB day.  We've recorded the Orange GT3 Center Muffler in our own testing at 10-12dB reduction over the OEM GT3 Muffler.  All of the testing was done on cars WITHOUT GPS Exhaust flap closing devices.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLifetime Guaranteed including track use.\u003c\/li\u003e\n\u003cli\u003e321 Stainless Steel coupled with a high strength design.\u003c\/li\u003e\n\u003cli\u003eQuiet has no power loss (up to 450whp engines), sounds great and reduces sound levels 10-12dB over stock.\u003c\/li\u003e\n\u003cli\u003eLoud less restriction on higher powered cars (\u0026gt;450whp) and wicked flat six waiil!\u003c\/li\u003e\n\u003cli\u003e4\" rolled exhaust tips in PVD Black are Standard.  Titanium Tips are optional!  Add our Nurburgring Quiet Tips to further quiet your car down!\u003c\/li\u003e\n\u003cli\u003eDirect replacement of the OEM muffler, will fit existing modification if they work with the OEM Center Muffler.\u003c\/li\u003e\n\u003cli\u003eOEM 63mm or 3\" lower inlet sizing for increased flow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e* for no drone performance, the cars must maintain valves and use both the upper and lower exhaust paths in the muffler.\u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"Loud Muffler PVD Black Tips \/ 2.5\" (OEM Headers)","offer_id":32383117885476,"sku":"100-30268","price":5935.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler PVD Black Tips \/ 3.0\" (Dundon Headers)","offer_id":46581330280623,"sku":"100-30281","price":5935.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler PVD Black Tips \/ 2.5\" (OEM Headers)","offer_id":46581330313391,"sku":"100-30272","price":5935.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler PVD Black Tips \/ 3.0\" (Dundon Headers)","offer_id":46581330346159,"sku":"100-30283","price":5845.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler Ti Tips \/ 2.5\" (OEM Headers)","offer_id":46581330378927,"sku":"100-30270","price":6595.0,"currency_code":"USD","in_stock":true},{"title":"Loud Muffler Ti Tips \/ 3.0\" (Dundon Headers)","offer_id":46581330411695,"sku":"100-30282","price":6595.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler Ti Tips \/ 2.5\" (OEM Headers)","offer_id":46581330444463,"sku":"100-30274","price":6595.0,"currency_code":"USD","in_stock":true},{"title":"Quiet Muffler Ti Tips \/ 3.0\" (Dundon Headers)","offer_id":46581330477231,"sku":"100-30284","price":6595.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/99119912-gt3gt3rs-lifetime-center-muffler-2134433.jpg?v=1761720811"},{"product_id":"718-gt4-street-headers","title":"718 GT4 GTS Spyder Street Headers","description":"","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":32397625098276,"sku":"100-30303","price":9265.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/files\/718-gt4-gts-spyder-street-headers-575865.png?v=1738688619"},{"product_id":"dundon-gt3-muffler-hardware-kit","title":"Dundon 321SS GT3 Muffler Hardware Kit","description":"\u003cp\u003eHardware Kit to Install a 321SS Lifetime Dundon Muffler on 997 and 991 GT3\/RS cars. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Dundon Motorsports","offers":[{"title":"2.5\"","offer_id":37936727261359,"sku":"104-20003","price":350.0,"currency_code":"USD","in_stock":true},{"title":"3.0\"","offer_id":37936727294127,"sku":"104-20004","price":350.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/dundon-321ss-gt3-muffler-hardware-kit-169068.jpg?v=1627344416"},{"product_id":"991-2-gt3-cup-93mm-throttle-body-center-plenum-air-intake-kit","title":"991.2 GT3 Cup 93mm Throttle Body-Center Plenum Air Intake Kit","description":"","brand":"Dundon Motorsports","offers":[{"title":"Default Title","offer_id":38189688684719,"sku":"200-30023","price":3856.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0075\/5046\/8132\/products\/9912-gt3-cup-93mm-throttle-body-center-plenum-air-intake-kit-986371.jpg?v=1626998292"}],"url":"https:\/\/www.dundonmotorsports.com\/collections\/track-prep-sale-10-off-exhaust.oembed?page=5","provider":"Dundon Motorsports","version":"1.0","type":"link"}