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The Turbosmart Gen-V WG45/50 14 psi blue outer spring provides a 14 psi outer spring rate for WG45/50 external wastegates. It’s supplied as an OEM-style calibration spring to alter the stacked spring pressure and control boost behavior in external wastegate setups. Use it to change the outer spring calibration without modifying the wastegate housing.
Turbosmart Gen-V WG45/50 14psi Blue Outer Spring
