Enjoy 321 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. Technical...

We'd been asked by a few to make a Crack Pipe that wasn't as much of a commitment but still true to the original Megaphone Crack Pipe. Meet the Mini Crack, this one works with Dundon valved side muffler deletes or our Street Headers,...

These 625 inconel inserts block the expansion chamber on the lower pathway, dramatically reducing the muffling effect. The combination of the titanium muffler with the loud inserts gives you the ultimate “have your cake, and eat it, too” exhaust. The quietest system we make...

Dundon 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! Technical Description We were able to...

Your 992 GT3RS is as sharp as a road-going GT3 gets, and it still leaves sound on the table. This is the EU/RoW fitment of Dundon Motorsports' Cat-Back Exhaust System: No CEL, No Codes, No tune required, just pure sound! Photographs are illustrative only,...

Your 992 GT3RS is an amazing car, but we feel it's lacking in the sound department! Dundon Motorsports' Cat-Back Exhaust System brings it to life — no CEL, no codes, no lights, just that great Dundon Sound! Photographs are illustrative only, production parts will...

Package Includes: Street Headers Lifetime Muffler (Quiet or Loud w/ PVD Black or Titanium Tips) 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...

Add 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...

At Dundon, we test our products endlessly to ensure the utmost quality. 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....

Add 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...

Our Most Popular Package. Street Headers and Lifetime Muffler! 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...

Add 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...

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 this...

Gain Big Power and that RSR Sound you all Crave! Our Race Header and Inconel Megaphone Center Delete Package gets it there! Package includes: Race Headers Inconel Megaphone Center Exhaust "Crack Pipe" By harnessing and controlling the pressure waves in the exhaust we can...

Hardware Kit to Install a 321SS Lifetime Dundon Muffler on 997 and 991 GT3 Cup cars. The 2.5" version also works for 981 GT4/Clubsport cars retrofitting a GT3 muffler using our adapter kit. Kit includes: Flanges (2.5" for stock headers or 3" for Dundon...

A used version of our most popular 991 exhaust package. Street Headers and Lifetime Muffler! Photos are of the actual system. Dundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991 GT3/RS! less weight more power, great sound, quiet...

Great Sound, and Great Power without drone! This is the complete exhaust upgrade for your 981/718 4.0L Boxster or Cayman. This system checks all the boxes: Big performance gains, no drone, no CEL's, retains cats and valves and gives you the sweet flat-6 symphony...

Get the best sounding, most powerful exhaust for your GT4RS Clubsport, paired with our 93mm intake so it can breathe as hard as it screams. No valves, no muffler, no compromises. You want it LOUD, this is LOUD!! The GT4RS shares its engine architecture...

Get the best sounding, most powerful exhaust for your GT4RS Clubsport. No valves, no muffler, no compromises. You want it LOUD, this is LOUD!! The GT4RS engine is very sensitive to exhaust length, and our tuned-length 321 stainless Clubsport headers are worth +20 hp...

The loudest, most powerful exhaust for your GT4RS! This system deletes valves and the muffler for the ultimate in power and performance. BE WARNED! This is LOUD and drones. Not recommended for sensitive drivers, passengers or neighbors! Makes 32whp at 8000rpm and 37lbft at...