Gen4 / IWG WG38/40/45/50L 3PSI INNER SPRING - BROWN/BLACKGen4 IWG WG38 40 45 50L 3PSI INNER SPRING BROWN BLACK Upgrade your turbo setup with the Gen4 IWG WG38 40 45 50L 3PSI INNER SPRING BROWN BLACK, a genuine Turbosmart wastegate designed for precise boost control, thermal stability and long term reliability. Spring Suit Turbosmart Ultra Gate38 (38mm), Comp Gate40 (40mm), Hyper Gate45 (45mm) External Wastegates, and Internal Wastegate Actuators (IWG 75). Why Buy from Torque Lab? Torque Lab supplies genuine