Upgrade your Kawasaki ZX10R's performance with this Racing Valve Spring Kit, designed for models from 2004 to 2018. Enhance your engine's capabilities with high-quality components engineered for racing applications. Kit includes :

16) Precision Machined Ti Retainers )

8) Spring Base Shims Intake side only 2004-2018 year models

16) HD Custom Valve Springs 55# Seat Pressure at install height

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