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ACT - HD/Race Rigid 4 Pad (BM9-HDR4) 2002-2006 | BMW M3

ACT - HD/Race Rigid 4 Pad (BM9-HDR4) 2002-2006 | BMW M3


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Regular price $759.00 USD
Regular price Sale price $759.00 USD
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BM9-HDR4 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 rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.

Feel: Light to moderate pedal effort, aggressive engagement, increased gear rattle;

Life: Moderate friction life, extended by ACT's exclusive diaphragm design, rigid design may increase spline wear;

Quality: Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance;

Recommended Use: Recommended for race use only;

ACT Difference: 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

Dimensions (L/W/H)
16.2 lbs
12 Months
Product Weight (lbs.)
Disc Type
Rigid Race Disc
Pressure Plate Type
Heavy Duty
Input Shaft Diameter (Inches)
Torque Capacity Over OE
Torque Capacity (ft/lbs.)
Friction Surface Diameter (Inches)
Friction Surface Diameter (mm)
Spline Count
HD/Race Rigid 4 Pad
Disc Material
Pad Quantity
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