14/01/2026
The Porsche 992 GT3 and 992 GT3RS Exhaust systems leave much to be desired for improved performance, added power, and improved sound. We designed a long tube header, keeping the valves and no check engine lights, to dramatically increase power and fantastic sound.
We keep the valves for easy cruising, better than 200 cell catalysts, and allow you to experience the sound you love from our sublime Ultralight Porsche Titanium Muffler, to the Porsche RSR craziness of our Inconel 625 Crack Pipe.
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:
1. 321 Stainless Steel Muffler version: 10 lbs lighter than stock
2. Titanium Muffler: 25 lbs lighter than stock
3. Inconel 625 Mini Crack Pipe: 29 lbs lighter than stock
5. Complete bolt-on system Including
a. Dundon Tuned Length 321 Stainless Headers
b. Advanced High Flow Cats
c. Electronic Valves retained for comfortable cruising and that signature Dundon sound when you want it!
d. Lifetime Loud Muffler in 321 Stainless Steel or Titanium or Inconel 625 Mini Crack Pipe, 991.2 GT3 Brackets, Mounting straps and bolts.
e. PVD Black or Titanium Tips (only available on 321SS mufflers)
#911 #992 #
