Fabspeed Motorsport has developed a new performance exhaust system for the Audi TT-RS which replaces the heavy factory mufflers and tips with lightweight free-flowing straight-through pipes for increased power and sound. In addition to the rear exhaust, Fabspeed is also now offering Secondary Catbypass Pipes which replace the redundant and restrictive secondary catalytic converters. More power, more sound, and no Check Engine Light! Audi TT-RS Supercup Exhaust System http://www.fabspeed.com/audi-tt-rs-supercup-exhaust-system/ Audi TT-RS Secondary Catbypass Pipes http://www.fabspeed.com/audi-tt-rs-secondary-catbypass-pipes/