The Turbosmart Ultra-Gate38 is a 38mm external wastegate for street and racing applications, specifically for classic 2 bolt flanges (71mm spacing). Designed with minimum size and maximum flow in mind, the new Ultra-Gate38 is smaller and lighter than previous models & features Turbosmart's unique locking collar design for quick and easy spring changes (3psi - 26psi option avaialble). Features a one-piece Stainless Steel Valve for maximum reliability and our proven Silicon Nomex Diaphragm.