The WGA features a longer stroke, shorter height, and more adjustment than its rivals. WGA part 7306 is designed to bolt on to Ford XR6 turbo models. The 5psi and 7psi springs are installed for a base pressure of 12psi, and the 10psi spring is included in the packaging for further tuning options. Please note that whilst this is a physical “bolt-on” product, it should be considered a tuning tool as it WILL increase boost pressure and therefore TUNING IS REQUIRED.