APR's TT Exhaust is a stainless steel, mandrel bent, cat-back exhaust. Our exhaust begins after the factory catalytic converter with a 2.5" pipe, and continues back to the muffler and two elegant semi-oval tips. This exhaust really wakes up the TT and gives it a deep snarl that a sports car of the TT's caliber deserves. With TIG welding, fully stainless construction, and CNC'ed hangers, you will not find a higher quality system on the market. If you have a 180hp TT, you will need to install a rear lower valence from a 225hp TT.