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The Supertech Dual Valve Spring Kit for Subaru WRX/STi 16V applications. This kit supplies matched dual valve springs tailored to the 16-valve WRX/STi engine configuration, offering the spring hardware specified for those Subaru models. It serves as the engine-specific dual-spring solution for that application.
Supertech Subaru WRX/STi 16V Dual Valve Spring Kit
