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The GSC P-D SR20 valve spring kit is a complete valvetrain upgrade featuring single springs and titanium retainers intended for SR20 engines. It replaces OE springs to support higher RPM use and valve control where needed for cam upgrades or race-oriented setups. The kit focuses on reliable spring seating and lightweight retention hardware to improve valvetrain stability without altering unrelated engine components.
GSC P-D SR20 Single Spring w/ Titanium Retainer Valvetrain Kit
