WG40 Compgate 40mm Ext Wastegate 7 PSI Black

The WG40 Compgate 40mm Ext Wastegate 7 PSI Black from Turbosmart USA is a precision boost control valve engineered for turbocharged engine builders and performance enthusiasts. This external wastegate manages excess boost pressure by venting exhaust gases away from the turbine wheel, allowing you to maintain peak power output without exceeding your engine's safe operating limits. Proper sizing of the wastegate is critical for reliable boost management and turbo longevity.

The 40mm compact gate body is designed for tight engine bay installations where space is at a premium, and the 7 PSI spring rating provides a predictable crack pressure ideal for mild to moderate boost applications. Turbosmart's proven poppet-valve design ensures smooth, responsive boost control across the RPM band while minimizing turbo spool lag. The black powder-coat finish resists corrosion and heat degradation in harsh underhood environments.

DIY tuners, professional shops, and engine builders standardize on Turbosmart wastegates for their repeatability and durability across thousands of build applications. The compact external mounting footprint integrates seamlessly with custom turbo manifold designs or OEM-based turbo kits. This wastegate is particularly suited for applications running between 6 and 10 PSI, making it an excellent choice for those looking to optimize their turbocharged setups.