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The GSC Power Division dual cylindrical valve spring kit for Subaru FA20 applications is a direct-fit valve spring set intended for FA20 engines used in WRX, BRZ and FR-S models. It supplies the spring hardware needed to retain valve control under intended operating conditions. This kit targets FA20 cylinder heads and is labeled for Subaru WRX/BRZ/FRS engine compatibility as specified.
GSC P-D Subaru FA20 WRX/BRZ/FRS Dual Cylindrical Valve Spring Kit
