Turbosmart TS-0506-1041 Hyper-Gate45 Black 14 PSI WG45 2011 Wastegate,45 millimeter 45mm high temperature stainless steel valve Designed to fit into tight engine bays, giving the ability to index the cap orientation in 12 different positions Collar locking design Compatible with other popular 44mm v-band inlet and outlet weld flanges Suits welding to 1.75 inch OD pipe