The ETS Cat-Back Exhaust System is an effort for all out performance on the EVO. The 3.0″ or 3.5” Mandrel bent stainless steel piping, and a Vibrant Performance muffler make for a performance and appearance combination that can’t be beat. This system starts at the cat and tucks closely in to the driveshaft tunnel allowing near factory ground clearance. The piping expands to a full 4″ before meeting the 4″ muffler inlet and exits via a 4″ tip at a 15 degree angle. This setup offers both race-inspired looks and ultra high performance capacity. This exhaust uses the factory rubber hangers and includes the hardware necessary for an easy, bolt on installation.