The new ATLAS exhaust race pipe is engineered to perform in the most extreme environments. this system is constructed from 4 in. mandrel bent aluminized steel tubing for maximum flow; increased horsepower; increased torque and lower EGTs. ATLAS exhaust race pipes are the perfect combination of performance; fit; and value. All systems use factory mounting locations providing stability and hassle free installation. High quality OE style flanges are used for complete 360 deg. sealing surface. 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 of an OE style fit that does not change with time.