The Long Awaited Dundon GT4RS Muffler:  Great flat-6 wail, no drone and big power! Have your cake, and eat it, too!

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 our...

Get the extra camber you're looking for 1-1.5* more just from the camber plates. Work with stock dampers and our MCS dampers Fits ALL 991 GT3/GT3RS ModelsFits ALL 981/718 Spyder/GT4/GT4RS Models-Features: machined aluminum plates, 10.9 grade pressed-in studs, high quality monoball bearing, enhanced camber...

Add major downforce and performance with our 718 GT4RS carbon swan neck wing and carbon dual dive planes. This package gives big downforce and major confidence to the 718 GT4RS driver!   *Stage 2 kit does not include pictured splitter below*

The PFC Ultimate Brake Kit for your Porsche. Using the same technology found on the Porsche Motorsport 991 GT3 Cup platform.

Want to dial in the perfect alignment for your 997 GT3/RS, 981 GT4, 718 GT4 or GT4RS? Dundon Motorsports' shim kit is what you need. All the sizes you want to get your settings perfected.

Lightweight, strong, easy to install and adjust, our Titanium Tie Rod ends take your Porsche's handling and steering feel to the next level!

We're honored to bring Motion Control Suspension true motorsports dampers to the 718 GT4RS. These give you more grip and confidence on the track while maintaining excellent road manners and your Front-Axle Lift capability.

Dramatically improve rear end grip at speed with our GT4RS Valkyrie swan neck wing.  The wing and full aero kit were designed in CFD to greatly improve the vehicle's performance around the track.  The wing alone has the ability to dramatically reduce lap times...

Enjoy quick and easy replacement of your rotor rings with PFC's V3 Disc technology. No hardware replacement needed!   *Rings only, no hats or circlip is included.

Enjoy quick and easy replacement of your rotor rings with PFC's V3 Disc technology. No hardware replacement needed!   *Rings only, not hats or circlip is included.

Get better aero performance on your 718 GT4RS. One key factor the GT4RS lacks is meaningful downforce.  Designed using Wind Tunnel Validated CFD and rigorously tested, the Dundon Complete Aero Package gives your 718 GT4RS 4X more downforce and the driver more confidence to go faster....

Replacement anti-skid pucks for our Valkyrie Splitter.

Enjoy quick and easy replacement of your rotor rings with PFC's V3 Disc technology. No hardware replacement needed!   *Rings only, not hats or circlip is included.

Originally designed for professional racing teams competing in the IMSA Continental Tire SportsCar Challenge Grand Sport (GS) class, the Forgeline GS1R combines the latest in advanced wheel technology, including one piece forged monoblock construction, motorsport engineered design, and I-beamed spokes. This wheel is engineered...

We were never happy with the "paste on" wind deflectors and the other styles with plastic "guts" that just either strip out the screw hole and fly off, or debond and fly off.  So we made the ultimate wind deflector for 718/981/991 cars.  CNC machined...

Add much needed front downforce to your GT4RS with Dundon's dual carbon fiber dive planes. Compatible with the stock front end, these are a 100% reversible install.  

718 GT4RS Valkyrie Carbon Splitter! Complete your Dundon GT4RS Aero Package with the Valkyrie Carbon Splitter with Dual Dive Planes. Our Carbon Splitter adds the front downforce needed to really take advantage of the Valkyrie Swan Neck Rear Wing. With the 718 GT4RS Splitter added to a car...

Protect your expensive OE PCCB (ceramic) rotors to PFC direct-fit steel rotors. - Featuring PFC proprietary metallurgy developed for the rigorous criteria of the 991 GT3 Cup race car. 2-piece floating design ensures thermal stability for even the most extreme track usage, weight optimization, and replaceable friction...

Get the best sounding, most powerful exhaust for your GT4RS.  No compromises.  Over 3 years in development and 11 Prototypes to get it right.