148 results found for “race headers”

Includes: 4 - 3" V-Band Clamps 4 - 3" V-Band Gaskets 2 - 991 Cat/Engine Brackets 16 - M8 Oversize Washers 8 - M8x1.25mm Lock Nuts 8 - M8x1.25mm Black Oxide Bolts 20mm Length

Pre-owned kit. Inspected and ready to install. Expect light cosmetic wear.Put a GT3 muffler on your 981 Cayman or Boxster. This adapter kit connects a Dundon-compatible GT3 muffler to any 981 chassis car, and it's the same hardware we use in our D4 GT4...

We based this design on the fabled 997 4.0L GT3RS. It features dual conical air filters from the 4.0RS.On a stock car this airbox will free up about 5-7whp.On a Dundon Race Header equipped car, this airbox is good for about 8-10 whp!Note Fan...

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...

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...

Includes: 2 - Porsche OE Side Muffler Brackets 1 - 991 GT3 Center Muffler Bracket 2 - 991 GT3 Center Muffler Straps with Bolts

Your 992 GT3 is an amazing car — we just think it is lacking in the sound department. Dundon Motorsports' Cat-Back Exhaust System fixes that: no CEL, no codes, no lights, just that great Dundon Sound! Photographs are illustrative only, production parts will look...

Using science and engineering to increase performance is what we do. The Dundon 981/991 3.8L Intake Runners are no exception. Through careful design of the intake runner geometry we were able to add 30+ peak wheel horsepower on top of our already potent race...

Great Sound, and Great Power without drone!   We have spent the last TWO YEARS building, testing, iterating and improving this design. Now it's finally ready.   Using the latest technology in additive manufacturing, made from 347SS 3D-printed internals, this design keeps the “valve-open”...

Foundational Part

Foundational Part

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...

This is the most complete, well-rounded power package around for the 991.2 GT3 4.0L. With careful consideration and many design, engineering and tuning hours, we have extracted impressive power, torque and drive-ability out of the 991.2 GT3 4.0L engine. The best part: no compromises. ...

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....