Pay in 4 interest-free payments of $64.19 Learn more
Ships within 48 hours · Estimated delivery Aug 15 - Aug 20
enabling optimal fuel injection timing and air-fuel ratio calibration
25mm oversized bearings feature advanced metallurgy designed to withstand extreme loads and sustained RPM in turbocharged and naturally aspirated builds
these pistons are engineered from 2618 aluminum
This precision-engineered differential minimizes wheel spin during acceleration and maintains optimal power distribution through turns
The durable red housing ensures visibility and easy identification in tight engine bays
Action Clutch Stage 4 Clutch Kit (06-11 Civic Si) Action Clutch:Default Title enabling optimal fuel injection timingAction 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
