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...

The 93mm Throttle Body has 28.6% more area than the 82mm throttle body, while the Dual Reverse Cone Air Filter box adds 380% more filter area to reduce pressure drop and Increase Horsepower!

We're honored to be the exclusive partner of Motion Control Suspension bringing true motorsports dampers to the 991 GT3RS and GT2RS. 

To go faster on track you need to corner faster, brake quicker and be able to put the power down more efficiently. This is why efficient aerodynamics are key. You will have more confidence, have more fun on track and set faster lap times...

You Want Great Sound? You Want Drone Free? You Want the LIGHTEST muffler for your Porsche?   We've got what you're looking for!  Our Titanium Ultralight GT3 Muffler is all of the above, with a signature Titanium shriek at high rpm, and no bleeding ears on...

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

Clone - an exact copy of the original. In our case we're talking about taking the fear and anxiety out of having a tune on your GT car and extracting and tailoring the ecu to take the most advantage of your modifications in a...

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, for...

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....

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, for...

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....

Get the most our of your GT3 or GT3RS with M-Engineering's ECU calibration. With optional Map Switching you can independently select your power level based on the fuel you use. Map switching can be customized based on your needs, so please reach out to...

  Enjoy 347 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....

991.1, 991.2 GT3RS and 991.2 GT2RS: Carbon Fiber Gurney Flap to aid in down force without excessive angle of attack. Attaches with 3M double sided tape for a secure and easy installation.

Why do you need adjustable sway bar end links? To ensure perfect corner-balance and zero pre-load on your sway bars with Dundon Motorsports' NEW adjustable sway bar end link set (front & rear).   When your 991 GT3 or GT3RS is corner-balanced or even...

The Accessport V3 is the world’s best ECU tuning solution for Porsche. The simple DIY plug and play connection to the car’s engine management system via the OBDII port allows for any GT3 owner to apply improved engine and PDK calibrations to their favorite...

Upgrade your car's handling with DSC! This revolutionary device turns your passive PASM system into an active suspension system with multiple personalities. The DSC module monitors acceleration, brake application, G forces, and many other parameters to tune your car's handling in milliseconds.

Want to dial in the perfect alignment for your 991 GT3 or GT3RS? Dundon Motorsports' shim kit is what you need. All the sizes you want to get your settings perfected.

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!

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....