Conversion Kit - Suit Turbosmart Ultra-Gate38 (38mm), Comp-Gate40 (40mm) and Hyper-Gate45 (45mm) External Wastegates. Provides an Upgrades top cap to allow base pressure springs of up to 40psi. Inclues springs of 35 PSI base pressure in the kit and all accesories to convert your existing WG38, WG40 or WG45 to a HP Gate quickly and easily.