Dundon Street (Catted) tuned length headers and valved side delete exhaust system for the 991.1 GT3! We were able to keep all of the things that people love about our race headers: less weight more power, great sound, quiet when you want it to...

The 992 GT3 and 991.2 Speedster mark a drastic departure in exhaust configuration when compared with the last 15+ years of 911 GT3. Gone are the large side mufflers and nearly universal center muffler. The 992 platform has a gigantic and complicated center muffler...

The 992 GT3 and 991.2 Speedster mark a drastic departure in exhaust configuration when compared with the last 15+ years of 911 GT3. Gone are the large side mufflers and nearly universal center muffler. The 992 platform has a gigantic and complicated center muffler...

For a long time you had to sacrifice your street drivability if you wanted to upgrade to a motorsports damper. Not anymore! These dampers improve the 992 GT3's already formidable handling, while adding adjustability and forgiveness. We help make the car easier to drive...

For a long time you had to sacrifice your street drivability if you wanted to upgrade to a motorsports damper. No longer! Our Dundon-spec MCS 3-Way dampers improve your GT3's already formidable handling, while adding adjustability and forgiveness. We help make the car easier...

Get the best sounding, most powerful exhaust for your GT4RS.  No compromises.  Over 3 years in development and 11 Prototypes to get it right.   Great Sound, and Great Power without drone!   We have spent the last TWO YEARS building, testing, iterating and improving...

For a long time you had to sacrifice your street drivability if you wanted to upgrade to a motorsports damper. No longer! Our Dundon-spec MCS 3-Way dampers improve your GT3's already formidable handling, while adding adjustability and forgiveness. We help make the car easier...

For a long time you had to sacrifice your street drivability if you wanted to upgrade to a motorsports damper. No longer! These dampers improve your GT3RS or GT2RS's already formidable handling, while adding adjustability and forgiveness. We help make the car easier to...

The 992 GT3 and 991.2 Speedster mark a drastic departure in exhaust configuration when compared with the last 15+ years of 911 GT3. Gone are the large side mufflers and nearly universal center muffler. The 992 platform has a gigantic and complicated center muffler...

Several brake pads on the market boast 'ceramic' technology. DS1.11 is the real thing. It is based upon a chemical family known as Siloxanes. Unlike carbon based materials, siloxane chains do not decompose at high temperatures and so DS1.11 keeps on working up to...