991.2 GT3RS Products

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 your GT3RS!

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 the highway.  Combined with our Lifetime Warranty, and coming in at 9lbs fully dressed, this is the most exclusive exhaust in the world!

Ultralight Titanium mufflers are made to order and a 20% restocking fee is charged on cancelled or unused returned parts.

*Note the 992 Ti Muffler needs our street headers to fit on the car 

Dundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991 GT3RS and 911R are available now!  

* Muffler shown is not included with the system, only to see how the system goes together! 

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 both 991 and 997! 992 cars will need our cat-back kit or our full street header package. The only sound better than a Porsche is the sound of a Porsche that’s earned its racing stripes. That’s why we’ve designed the Crack Pipe — the ultimate, unbridled expression of Porsche’s Motorsport DNA (with a little help from Dundon Motorsports). If you want to seriously turn heads at the track when you fly by, this is the one for you. It's still loud but the valves do take a bit of the edge off while cruising. 

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.

Sold as a pair

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 effortlessly.

ONLY FOR 991.2 GT3RS with our Swan Neck Rear Wing. Adding this to a car with stock rear wing will make the car unstable due to too much front downforce. Add much needed front downforce to your GT3RS. Designed to complement the 991 GT3RS Swan Neck Wing Package.

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 991.2 GT3 and GT3RS.

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 inner frame, pre preg Carbon outer deflector.  It's the ultimate!

If you want to go faster on street and on track, then: Double the Downforce of the Stock 991.2 GT3RS. Make the air do your bidding and improve the aerodynamic performance of your GT3RS.

Add major downforce and performance with our 991.2 GT3RS carbon swan neck wing and carbon dual dive planes. This package gives big downforce and major confidence to the already formidable 991.2 GT3RS! 

The 93mm Throttle Body has 28.6% more area than the 82mm throttle body, while the Dual Reverse Cone Airbox has 380% more Filter area that the flat panel OEM air box. Less pressure drop means more horsepower!

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 safe and professional way!

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

*filters only

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 track weapon in a matter of minutes. Each Accessport comes with a collection of Off-The-Shelf maps for the engine computer as well as an optional upgrade for PDK tuning where applicable that combine to improve horsepower, torque, and transmission response and timing along with a list of unique custom features that will make you wonder how you lived without them before.

The 93mm Throttle Body has 28.6% more area than the 82mm throttle body, while the Dual Reverse Cone Airbox has 380% more Filter area that the flat panel OEM air box. Less pressure drop means more horsepower!

*Pre-Owned, and 1st generation, 3d printed plastic airbox, NOT carbon fiber*

*Plenum and most hardware are NEW*

Set your GT3RS up for success on your favorite mountain back road or track session with Dundon's Track Day Setup Packages. Achieve amazing steering feel, balance, and tire wear with these carefully designed and curated parts! 

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 just sit in it to drive on track, it will put pre-load on the sway bar because the stock end links are not adjustable. This adds additional spring load to one corner of the car, creating an imbalance from left to right. Our adjustable anti roll bar end links ensure there is no pre-load on the sway bar, and that your car is predictable and friendly on the road and the track! 

Works with Weissach Package and Non-Weissach Package 991.2 GT3RS!

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.

Complete replacement rear lower inner control arms for your 991 GT3 or GT3RS . Remove rubber from the rear suspension for better feel, less slop, and more grip! 

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!