Turbosmart Gen4 WG40 CompGate40 Top Cap Replacement Ð Black is a top cap replacement for Turbosmart 40mm CompGate wastegates. This product comes directly from Turbosmart and has the highest quality and craftsmanship. After you place your order, Turbosmart will contact you to confirm the model so they can engrave it correctly on the top cap. Turbosmart specializes in precision engineering and designing performance products that deliver maximum power without compromising reliability or drivability. The installation process is simple with TurbosmartÕs Gen4 WG40 CompGate40 Top Cap Replacement Ð Black. It's designed for those who want maximum power out of their wastegate without worrying about any issues along the way. Turbosmart: Engineered to Win!