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The GFB EX50 7 psi inner wastegate spring sets the internal spring rate for EX50 wastegates to approximately 7 psi, allowing tuners to adjust boost onset and behavior. It’s supplied as the inner spring for applications requiring a lower lift threshold and is intended for use when calibrating a turbo system’s boost control alongside compatible EX50 hardware.
GFB EX50 7psi Wastegate Spring (Inner)
