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Brian Crower dual-spring valve spring and titanium retainer kit for Honda/Acura K20A and K20Z, plus F20C and F22C engines supplies a race-capable spring package intended for high-rev street or track use. The kit combines dual springs with lightweight titanium retainers to control valve motion under demanding conditions, offering a direct upgrade path for K-series and F-series builds where stronger valve control is required.
Brian Crower Honda/Acura K20A/K20Z F20C/F22C-Race/LTD Street Dual Spring & Titanium Retainer Kit - N
