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This Turbosmart 57mm vacuum spring specified at 6 inHg is a replacement component for compatible 57mm wastegate assemblies. The spring's vacuum rating affects actuator preload and valve response characteristics. It is offered for service, rebuild, or tuning work on Turbosmart-compatible wastegates; installers should verify that the 57mm 6 inHg specification matches their wastegate to ensure proper fit and behavior.
Turbosmart 57mm Vacuum Spring 6inhg
