The Turbosmart's Hyper-Gate45 is a 45mm external wastegate designed with minimum size and maximum flow in mind. Smaller and lighter than the previous model, the new Hyper-Gate45 features a unique locking collar design for reduced size and quicker spring changes. (Options from 3psi to 26psi available). Features Solid 1 Piece coated Stainless Steel Valve and silicon nomex diaphragm proven for performance and reliability.