BM9-HDG4 kit features ACT's most popular Heavy Duty pressure plate. ACT Heavy Duty pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad spring-centered race disc features a spring-center to properly damp torsional vibrations for quieter operation and resist failure even under harsh conditions. ACT spring retainers utilize wraparound spring windows and thicker retainer stampings to provide spring support, reduce stress concentrations, and increase strength and reliability. With the 4-pad spring-centered race disc, engagement is harsher, but shifting is faster. ACT's 4-pad spring-centered race disc is well-suited for smaller disc sizes in smaller engines.

Light to moderate pedal effort, aggressive engagement, OE to mild gear rattle; Moderate friction life, extended by ACT's exclusive diaphragm design; Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance; Recommended for high horsepower street or race use; 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

clutch kit;pressure plate;heavy duty;spring-centered;race disc;4 pad;sprung disc;sprung hub;4 puck

Must use ACT Flywheel with Sprung Hub Discs for proper clearance. (Flywheel not included)

Must use ACT flywheel with sprung hub discs for proper clearance (flywheel not included).

ACT 01-06 BMW M3 E46 HD/Race Sprung 4 Pad Clutch Kit

BHXS - ACT HD/Race Sprung 4 Pad Kit

HD/Race Sprung 4 Pad

Clutch Kit