Give your GT4RS a beautiful and functional upgrade with our Carbon Dual Dive Planes and Carbon Gurney Flap. Add downforce and style to your GT4RS!

Make BIG improvements in downforce and confidence with our Stage 2 aero package for the 718 GT4RS!   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...

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,...

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...

Foundational Part

Foundational Part

The Long Awaited Dundon GT4RS Muffler: Great flat-6 wail, no drone and big power! Have your cake, and eat it, too! Technical Description Great Sound, and Great Power without drone!We have spent the last TWO YEARS building, testing, iterating and improving this design. Now...

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...

The Dundon Motorsports 718 GT4RS Performance Package is an all-encompassing upgrade designed to transform your Porsche 718 GT4RS into a high-performance powerhouse. Combining advanced power enhancements, precise suspension tuning, cutting-edge aerodynamics, superior wheels, and high-performance brakes, this package ensures your vehicle performs at its...

We built the lightest, LOUDEST, most powerful exhaust for your GT4 Clubsport. No valves, no muffler, no compromises. Not for the faint of heart or for tracks with sound restrictions. Ear plugs not included! Dundon tuned-length 321 stainless steel Clubsport headers feed straight into...

40lbft and 40whp gainsThe Dundon Power Package for 991.1 911R Includes:Dundon 321Stainless Long Tube Street Headers93mm Center Plenum and 93mm Throttle Body Kit991.2 GT3 Touring AirboxOptional Lifetime Muffler with PVD Black or Ti Tips, in Loud or Quiet configurationsWe work on helping the naturally...

Dundon 981 Race Headers provide substantial gains in torque and horsepower throughout the rev range. They are a race system so are for track or off-road use. All Dundon headers are made with 321SS, the advantages of this are numerous and include, better fitment,...

In our testing on the 718 GT4 and 4RS we've found an even softer setting that stock soft made the car even better. They also work well on the 991.1 and 991.2 GT3. Simple Robust Design. All Hardware included.

1. Improved Adjustability - Increased Negative Camber The factory LCAs (Lower control arms) have limited adjustability and thus limited alignment options. Our LCA's are slightly longer, and feature high-grade, extended length studs, which allows for the use of adjustment shims to dial in your...

1. Adjustability - Increased Negative Camber The factory LCAs (Lower control arms) are not adjustable leaving you with limited alignment options. Our LCAs are two pieces featuring an inner and an outer arm, connected by extended length studs which allows for the use of...

Dundon Motorsports is happy to provide the Cobb Accessport for the 981 Cayman S/GTS and Boxster S/GTS 3.4L platform. We are Cobb Pro Tuners and have developed a great tune for the 981 when paired with our Intake Runners and/or our Headers. Includes: Cobb...

Bring your 3.4L Boxster or Cayman to the next level with our Intake Runners. When combined with our race headers and custom tune, you'll see gains of 60+hp and 40+trq at the wheels! Using science and engineering to increase performance is what we do....

GT3 Muffler Adapter Bracket for 981 GT4 Over-Axle Kit