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The Supertech dual valve spring kit for Opel/Vauxhall Z20LET 16V engines supplies a matched set of dual springs specified for that 16-valve Z20LET application. Offered as a complete kit, it replaces single-piece valve arrangements with a dual-spring configuration where required. The listing indicates the unit is intended specifically for Z20LET 16V engines and is sold as the engine-specific kit.
Supertech Opel/Vauxhall Z20LET 16V Dual Valve Spring Kit
