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The Supertech Dual Valve Spring Kit for Subaru WRX/STi 16V applications. This kit provides matched dual valve springs specified for the 16-valve WRX/STi engine configuration, delivering the spring hardware intended for those Subaru models. It is presented as an application-specific option for the WRX/STi valve train.
Supertech Subaru WRX/STi 16V Dual Valve Spring Kit
