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Honda K20A2/K20Z1/K20Z3 Intake Valve Spring 14761-PRB-A02 OEM-equivalent intake valve spring engineered for Honda K-series engines
high compression and/or utilizing aftermarket competition cams
tighter feel over the OEM
Perfect for tuners seeking maximum horsepower gains and knock resistance without complex fuel system modifications
Action Clutch Stage 5 Clutch for 06-11 Civic Si Action Clutch:Default Title Honda K20A2/K20Z1/K20Z3 Intake Valve SpringAction Clutch's lightweight flywheel engineered to deliver measurable performance gains through reduced rotational mass. The aluminum construction cuts weight enabling faster engine response, quicker acceleration, and improved throttle modulation. This upgrade minimizes drivetrain inertia for sharper shifts and enhanced rev matching capability. Ideal for drivers seeking responsive handling without sacrificing reliability or drivability in daily
