Pre-owned header system. Inspected and ready to install. Expect heat discoloration and light cosmetic wear from use. 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...

Replacement air filters (pair) for use with Dundon Dual Reverse Cone Airbox for 991 GT3RS cars. *filters only

Enjoy 321 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. Technical...

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...

Lightweight, strong, easy to install and adjust, our Titanium Tie Rod ends take your Porsche's handling and steering feel to the next level! Technical Description When dialing in a track setup on modern GT Porsches, increasing negative camber is a great way to improve...

Direct replacement for your stock front upper strut mount. Machined from T6061 Aluminum and uses high-grade, teflon-lined spherical bearings and grade 10.9 pressed-in studs for easy install.   Adds approx. -1.3° to the front with minimal caster change.

Upgrade your safety and comfort with this high-performance racing harness, ideal for professional drivers and serious enthusiasts alike. The 6-point Porsche Quick Adjuster harness features 50mm webbing throughout, with smooth-running professional adjusters on the shoulders and quick adjusters on the lap straps, all equipped...

The perfect gear bag to consolidate your driving gear into a single bag that fits perfectly in the “frunk” of your Porsche. With a configurable internal compartment and pockets built specifically to carry your Helmet, HANS Device, Nomex driving gear and shoes, this bag...

Adjustable Tension Arms to remove rubber and make dialing in your alignment, caster and wheel position in the wheel well simple and easy. Technical Description Stock Brake ducts attach directly to the Dundon Tension Arms! No zip ties! No brake duct flopping around. Tension...

Approach your 991 GT3RS upgrade journey in the right steps for you and how you use your car! Improve your suspension beyond the factory Weissach Package cars!   Our meticulously designed and carefully curated suspension packages are built to give you the improvement and...

Extended length front lower inner control arms with longer studs. Extended studs allow for increased negative camber and track width. Technical Description Built specifically for 991 GT3RS and GT2RS cars. Add negative camber and increase front track width with our extended front inner lower...

1. Increased Negative Camber Our LCA's are slightly longer, and feature high-grade, extended length studs. This design allows for a taller shim stack to achieve more negative camber than what is available from the factory Porsche part. 2. Improved Handling and Grip Our LCAs...

Complete set (of 6) rear "dog bone" control arms for your 991 GT3, GT3RS or 992 GT3. Remove rubber from the rear suspension for better feel, less slop, and more grip!

Pre-Owned 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.

991.1 GT3RS Carbon Fiber Gurney Flap and Dual Dive Plane Package: Add downforce and an aggressive look to your 991.1 GT3RS! Attaches with 3M double sided tape for a secure and easy installation.

Make BIG improvements in downforce and confidence with our Stage 2 aero package for the 991.2 GT3RS! Designed in CFD (computational fluid dynamics) to provide the maximum increase in downforce with minimal drag, our Dual Dive Planes and Valkyrie Swan Neck Wing increase downforce...

A used version of our most popular 991 exhaust package. Street Headers and Lifetime Muffler! Photos are of the actual system. Dundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991 GT3/RS! less weight more power, great sound, quiet...

Replacement set for PFC Track Day Kit equipped vehicles. Not compatible with OEM calipers.

Replacement set for PFC Track Day Kit equipped vehicles. Not compatible with OEM calipers.

Ferodo DS3.12 Track Pads for Radi-CAL Calipers including burnishing.