Techtonic's time proven 2.25" exhaust made with mandrel bent aluminized tubing and using a stainless Magnaflow muffler and 12" tt resonator. 7-8 HP. For Mk2 GTI '87-'92 16V and '90-'92 8V with 55mm catalytic converter. Clamps and rubber hangers included. Two year warranty on tubing and resonator and lifetime warranty on muffler.