This MACH Force XP Hi-Tuck "RB" Cat-Back exhaust system is constructed of 2.5" mandrel-bent 409 stainless steel and comes complete with a free-flowing muffler, tubing, OE style bayonet hangers, band clamps and all hardware necessary for a hassle-free installation. The smooth curves and increased diameter of this exhaust system helps remove restriction and keeps exhaust gas flowing smoothly for increased horsepower, torque and throttle response.