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Ships within 48 hours · Estimated delivery Aug 29 - Sep 3
tighter feel over the OEM
1:1 compression ratio are engineered for aggressive forced induction and high-boost applications
Perfect for tuners seeking maximum horsepower gains and knock resistance without complex fuel system modifications
The durable red housing ensures visibility and easy identification in tight engine bays
Action Clutch Stage 5 Clutch for 06-11 Civic Si Action Clutch:Default Title tighter feel over the OEMAction 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
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