Dundon Motorsports' 991 street header exhaust system is the elegant solution you have been waiting for! This system features stainless steel construction using 321 and 347 alloys that will withstand the most extreme conditions on the street or the track, while saving weight compared...

Get your 718 GT4 Spyder GTS to sound as it should! Gain 30 HP to the wheels , Lose Weight and get the sounds you're craving, all with a lifetime warranty!  

Need to dial it back a little bit? Get a meatball flag at your last track day? Our Quiet Tips take the edge off for the sound meter, but not your car's performance!

    Pre-Owned Header System for 991.1 and 991.2 GT3, GT3RS, 911R and GT3 Touring.    2.5" Outlets are for use with Stock Muffler and 3.0" Outlets are for use with Dundon Mufflers.   

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....

Dundon 981 Race Headers provide substantial gains in torque and horsepower throughout the rev range. They are a race system so are for track or off-road use.

The GT2RS is a beast born to dominate the Green Hell (Nurburgring), and while fast, is lacking a bit of emotion. We sought out to fix that with our Inconhell Street Exhaust. Enjoy the crackles, whistles and flames this system accentuates!   *New product...

Unleash your 996 GT3's fearsome howl with our latest addition to the "Crack Pipe" line of legends!   Full Inconel 625 construction and tuned-length megaphones will give your 996 the "F1-style" sound you've been craving!   Fair warning though, this one will make your...

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...

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...

Your new 992 GT3 is an amazing car, but we feel it's lacking in the sound department! Improve the sound of your 992 GT3 Exhaust with Dundon Motorsports' Cat-Back Exhaust System!   No CEL, No Codes, No tune required, just pure sound!   Photographs are illustrative only,...

The most powerful header system you can buy for your GT4RS!  Our tuned length manifolds and 3" catted "wave pipes" connect to the stock muffler for big improvements in sound and performance!  20whp gains with the stock muffler (more than 32 when combined with...

The Long Awaited Dundon GT4RS Muffler:  Great flat-6 wail, no drone and big power! Have your cake, and eat it, too! Great Sound, and Great Power without drone!   We have spent the last TWO YEARS building, testing, iterating and improving this design. Now...

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...

Hardware Kit to Install a 321SS Lifetime Dundon Muffler on 997 and 991 GT3/RS cars.   

Replacement tip sets for your Dundon Lifetime Muffler ONLY. Does NOT fit OE Porsche Mufflers. Proper tip length is important, so please ensure you select the correct application. 

Take your Titanium Ultralight muffler up a notch with this Inconel 625 Loud Insert. By eliminating the first expansion on the lower muffler tube, you create an even more visceral experience when the valves open and even quieter upper path when the valves close....

The OEM Porsche 992 GT3RS Exhaust system leaves much on the table for improved performance, added power and improved sound. We designed a long tube header, keeping the valves, no check engine lights, to get dramatically increased power and fantastic sound. We keep the...

Your new 992 GT3RS is an amazing car, but we feel it's lacking in the sound department! Improve the sound of your 992 GT3RS Exhaust with Dundon Motorsports' Cat-Back Exhaust System!   No CEL, No Codes, No tune required, just pure sound!   Photographs are illustrative...

Your new 992 GT3RS is an amazing car, but we feel it's lacking in the sound department! Improve the sound of your 992 GT3RS Exhaust with Dundon Motorsports' Cat-Back Exhaust System!  No CEL, no codes, no lights, just that great Dundon Sound!     Photographs are...