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The Supertech dual valve spring kit for Subaru EZ30 with variable intake lift provides a matched dual-spring arrangement to stabilize valve motion and support variable-valve operation. The kit is intended for EZ30 valvetrain refreshes or cam upgrades, offering direct-fit springs and retainers specified for this application to maintain consistent valve control under demanding engine conditions.
Supertech Subaru EZ30 (w/Variable Intake Lift) Dual Valve Spring Kit
