Description : Cat-back system, 3" (76mm). Like our header systems, DC Sports exhaust systems are dyno tested to outperform all comparable systems on the market. Extensive research and development goes into each exhaust system design to ensure the best performance and sound for your vehicle. Our exhaust systems are CNC Mandrel bent, hand welded, feature a straight-through muffler core, utilize the factory mounting locations and include complete hardware for ease of installation. DC Sports exhaust systems are manufactured from 304-stainless steel piping and feature a polished tip emblazoned with the DC Sports logo.