Dundon Motorsports D3 Power Package for 991 GT3 RS

TAG Motorsports is pleased to present the Dundon Motorsports D3 Power Package for the 991.1 and 991.2 GT3 RS.

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 specific GT car.

52LBFT AND 45HP AT THE WHEEL GAINS

The Dundon Power Package for the 991.1 / 991.2 GT3RS - Peak Gains are about 25-28whp, 52lbft max gains (at 4200rpm) and 45whp max gains at 8500rpm (where you need it!) When testing the 991.2 GT3RS we quickly identified an inefficiency in the intake system. A few things to note:

1. The Car is 520hp from the factory
2. The Airfilter box is from a 991.1 Carrera S
3. The Throttle Body is 82mm, the same it's been since the 996 GT3
4. Neither the 996 GT3 nor the Carrera S are 520hp...

Further the 991.1 and 991.2 RS are designed with side intake scoops to "Ram" air into the intake tract and center plenum. So any restriction or "friction" in this path will prevent the car from reaching it's full power potential.

Here's the Dundon 991.2 GT3RS Street Power Package:

1. Dundon Catted Street Headers
2. Dundon Dual Reverse Cone Airbox
3. Dundon Wide Mouth Center Plenum
4. 93mm Throttle Body and Adapter Harness
5. Option to retain OEM Muffler or ad Dundon Lifetime Muffler or "Crack Pipe" Muffler Delete

Here's the result on our dyno with a 991.2 GT3RS including full kit and Lifetime Muffler, keeping in mind that the benefit of the parts is when the car is moving! Peak Gains are about 25-28whp, 52lbft max gains (at 4200rpm) and 45whp max gains at 8500rpm (where you need it!).

*See the Dyno graph in the photos

Exhaust Details:

We use 321SS (a superior grade of Stainless steel to the cheaper 304SS) and use a metal core spiral wound 200CPSI catalytic converter. All our products are mfg in the USA in our shop in Gig Harbor, WA.

By routing the primaries up and positioning the catalytic converter more vertical we were able to retain 99% of the primary length of the race system. This is how we are able to achieve 40whp max gains on the 991.2 GT3RS, This is the most power from a catted 991.2 GT3RS Exhaust system.

Some pics installed on the car, the street headers are only about 0.5" shorter than our race headers. To fit everything we had to go up into the wheel well where the side mufflers sit. Only way to get the length required for real power gains...

As you can see to get the length we wanted we had to go up, anything that can bolt up to the stock location is leaving power on the table...

Video from the dyno in the gallery above so you can see and hear the awesomeness! You also get a good shot of how the headers are routed with the wheel off!