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The Supertech dual valve spring kit for Nissan SR20DET engines supplies a matched dual-spring set for SR20DET cylinder heads. The product description identifies this kit as intended for SR20DET applications. It is presented as the Supertech option for valve spring replacement or head rebuilding on SR20DET-powered vehicles, providing the paired springs specified for that engine family.
Supertech Nissan SR20DET Dual Valve Spring Kit
