1. Eliminates the OPF  2. No Check Engine Lights, and no tuning required  3. 992 GT3RS Stock - 474whp,  992 GT3RS  with Street Headers is 495whp (so far)… 4. Weight savings over stock: 321 Stainless Steel Muffler version: 10lbs lighter than stock Titanium Muffler:...

1. Eliminates the OPF  2. No Check Engine Lights, and no tuning required  3. 992 GT3 Stock - 448whp, 992 GT3 with Street Headers is 476whp (so far)… 4. Weight savings over stock: 321 Stainless Steel Muffler version: 10 lbs lighter than stock Titanium...

The 992 GT3 and 991.2 Speedster mark a drastic departure in exhaust configuration when compared with the last 15+ years of 911 GT3. Gone are the large side mufflers and nearly universal center muffler. The 992 platform has a gigantic and complicated center muffler...

The 992 GT3 and 991.2 Speedster mark a drastic departure in exhaust configuration when compared with the last 15+ years of 911 GT3. Gone are the large side mufflers and nearly universal center muffler. The 992 platform has a gigantic and complicated center muffler...

The 992 GT3 and 991.2 Speedster mark a drastic departure in exhaust configuration when compared with the last 15+ years of 911 GT3. Gone are the large side mufflers and nearly universal center muffler. The 992 platform has a gigantic and complicated center muffler...

The 992 GT3 and 991.2 Speedster mark a drastic departure in exhaust configuration when compared with the last 15+ years of 911 GT3. Gone are the large side mufflers and nearly universal center muffler. The 992 platform has a gigantic and complicated center muffler...

Get the best sounding, most powerful exhaust for your GT4RS.  No compromises.  Over 3 years in development and 11 Prototypes to get it right.   Great Sound, and Great Power without drone!   We have spent the last TWO YEARS building, testing, iterating and improving...

Dundon 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: less weight more power, great sound, quiet when you want it to...

Dundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991.1 GT3! 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...

100% Inconel 625 Race Exhaust, designed for strength, light weight and maximum reduction in flow restrictions.  Optimized High Flow Inconel Catalyst  12lbs, stock is about 37lbs so weight reduction of 25lbs over stock Integral Inconel Exhaust Tips, let the natural inconel color changes show...

The Dundon D4 Package is the culmination of our work on perfecting and guiding the pressure waves into and out of the 3.8L Engine resulting in 72lbft max gains over stock and 100whp at the rev limiter.

Add 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...