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ACT Heavy Duty Race Sprung 6-pad clutch kit for 2017–2019 Honda Civic Si uses ACT's Heavy Duty diaphragm pressure plate and a 6-pad, spring-centered race disc to handle harsher engagements and fast shifts. Spring retainers and thicker stampings support torsional damping and reduce stress under harsh use; the diaphragm is heat-treated for consistency and longevity. Recommended for larger clutch sizes where heat absorption and strength are primary concerns.
ACT 17-19 Honda Civic Si HD/Race Sprung 6 Pad Clutch Kit
