991 GT3/RS, Dundon Motorsports full 3inch system with crack pipe. 991 GT3/RS Dundon Motorsports long tube 3 - inch headers with sports cats and lifetime muffler power package, including Inconel mini crack pipe. System is designed for all 991 GT3 and RS models. System purchased in January for $14,256 plus local taxes. Selling due to change of car.