The Turbosmart Pneumatic StraightGate50 (Vacuum-Based) 6 InHg External Wastegate (Black) (Part #TS-0565-1212) is a high-performance automotive component from Turbosmart. The StraightGate50 from Turbosmart is the world's highest-flowing external wastegate!. The StraightGate50 is a zero-offset butterfly-style wastegate that allows enormous flow, almost linear control, and unparalleled boost control throughout the entire operating range. Designed as a direct-fit upgrade with straightforward installation. Backed by Turbosmart's reputation for quality and performance in forced induction systems.