An easy way to free up some power in your 991.1 or 991.2 GT3. We recommend changing the airfilter when installing Dundon exhaust packages to reduce pumping losses and free up as much power as possible! In conjunction with the Dundon Race Headers on...

Reduce crankshaft harmonics while also increasing power and reliability with our rigorously tested Harmonic Dampers. 997.1 GT3 and RS use the factory belt size (2260) 996 and 997 Turbo must switch to size 2260 997.2 GT3 and RS must switch to size 2260 Belt...

Tune your Porsche with a Cobb AP!   Includes: Cobb Accessport - $1095 (997.1) or $1165 (997.2) Dundon ProTune - $895

 Limited Slip Differential for Porsche G96/G97 and G50 transaxles. Holinger have spent many years supplying Porsche with O.E. sequential gearbox parts and have been involved in officially servicing their racing transmissions. We have become very familiar with the potential weaknesses in the differential area...

CFD optimized for improved performanceShift aero balance forward (improves front end grip)Allows fine tuning of aero balance (forward biased)Simple bolt-on or double-sided tape installation with templates (included) The dive planes for the Porsche 991 GT3 and 991 GT3RS  were specifically designed to increase front-end...

Reduce lift in the front of your 991.2 GT3 and GT3RS and aid in turn in grip! These Dual Dive Planes were designed with Computational Fluid Dynamics to aid in shape in placement and are part of our complete Aerodynamic upgrade package for the...

991.1/991.2 GT3 Carbon Fiber Gurney Flap aids in creating downforce without having to increase the angle of attack for the rear wing. Enjoy easy installation with 3M industrial double sided adhesive.

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. Technical Description...

Ferodo DS1.11 Track Pads for Radi-CAL Calipers including burnishing.

Ferodo DS1.11 for 991 GT3 Steel and PCCB Calipers

Ferodo DS2500 "Street" Brake Pads

APEX is an artificial intelligence system used for vehicle performance simulation. APEX learns the performance limits of your vehicle, and gives you real-time feedback on how to optimize your decisions at every point on the track. Bluetooth connectivity to your phone gives you laptimes...

Dundon Windshield Banner! Show your love for your favorite Porsche Performance Parts!

Don’t fall for the less expensive bars on the market. They don’t match our well thought-out design and construction. As with all Cantrell Motorsports half cages, our main goal is to provide safety and superior fit and finish. The rear mounts bolt to the...

We like Cantrell Motorsports Half Cages for our customers.From their website:The bars were designed with rear points to mount to the vehicle shock towers, not the rear seat belt mounts like other brands! When a bolt-in bar is mounted to seat belt mounts, under...

Dundon Sub-Belt Mount Set - For 981/991/718/992 Bucket Seats Enables the use of 6-point harnesses by providing an attachment point for the sub-belts.

Keep your harnesses rolled up nice and neat. Our Harness Reels are available in 1.5" (typical aftermarket bar size) and 41mm (typically Porsche Club Sport bar size). All are anodized black

No More Wub wub wub wub wub in your ear at 60mph with the windows down, and the carbon matches your Weissach package!

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....

Replacement Air Filter for Dundon Dual Cone Intake for 991.2 GT3 cars. *Filters Only