AFE Exhaust System is constructed of 2-1/2″ into 3″ mandrel-bent, 409 stainless steel tubing for maximum flow. The smooth transition bends allow for low turbulence, increasing horsepower, torque and improving throttle response. AFE Exhaust System use all factory mounting locations providing stability and a hassle-free installation. OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The Bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.