Exhaust
991.1 GT3 Long Tube Street Header Exhaust System
Rated 5.0 out of 5,Listed for991.1GT3
Sale price$8,338.50
Regular price
$9,265
−10% · Black Friday
You save $926.50 · ends Nov 30
Made to order
Welded parts (mufflers, headers) usually ship in about 7 business days. We call you if that changes.
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30-day Dundon GuaranteeLove it or send it back within 30 days.
Dundon Motorsports stands behind our products with a 30-day love-it guarantee. We are confident in the quality and performance of our upgrades, but if for any reason they don't meet your standards or help you push your performance on track, you can send them back within 30 days.
Overview
Want less weight, more power, great sound, and no drone for your 991.1 GT3? You've found it in our Long Tube Street Header Exhaust System.
Technical details
Dundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991.1 GT3 RS and 991.2 GT3 and RS are available now! We were able to keep all of the things that people love about our race headers:
- less weight
- more power,
- great sound,
- quiet when you want it to be
- no drone
- lifetime structural warranty
- 100% 30day money back guarantee
- if you try it and don't like it, send it back we'll give you your money back!
We use 321SS (a superior grade of Stainless steel to the cheaper 304SS) and use a USA made 200CPSI catalytic converter. All our products are manufactured in the USA in our shop in Gig Harbor, WA.
By 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 30whp gains on the 991.1 GT3 This is the most power from a catted 991.1 GT3 Exhaust
The Dundon Street Headers on 991 GT3 make
434whp peak
30whp at 8215rpm
26lbft, 23whp gains at 4586rpm
You 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!
Specs
- Part numbers
- 991.1 GT3 Long Tube Street Header Exhaust System - 2.5" Outlet (For use with OEM muffler) 100-30022
- 991.1 GT3 Long Tube Street Header Exhaust System - 3.0" Outlet (For use with Dundon Muffler ONLY) 100-30023
- Brand
- Dundon Motorsports
- Listed for
- 991.1 · GT3
- Condition
- New
What owners say
450+ independent reviews
Average 5.0 out of 5. Average from verified buyers, collected by Loox.
Recent reviews from other Dundon owners
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Rated 5 out of 5. Verified buyer
Installed the Dundon Street Header and Crack Pipe combo on my 2016 GT3 RS, and I couldn’t be happier with the results. The sound is absolutely incredible! It completely transforms the car and gives it that raw, aggressive, high-pitched race car sound that the 4.0L flat-six deserves. The way this...
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Rated 5 out of 5. Verified buyer
Great quality, fit and finish is fantastic, instructions were very thorough. Installed on 991.2 GT3 Cup, raced it the next day and everything held up wonderfully!
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Rated 5 out of 5. Verified buyer
Thank you Charles, Jamie, Ted and the crew at Dundon for taking such great care of me and your customers. You guys are a class act and have always gone above and beyond. Much appreciated! Nick