ACT Advanced Clutch HD/Race Rigid 4 Pad Kit BM9-HDR4

If you’re a proud owner of a BMW M3 from 2001 to 2006, the ACT Advanced Clutch HD/Race Rigid 4 Pad Kit BM9-HDR4 is a game-changer for your performance driving needs. This clutch kit features ACT's renowned Heavy Duty pressure plate, designed with an exclusive diaphragm that enhances clamp load, minimizes deflection, and extends clutch life. With a four-stage heat-treating process, you can trust that this clutch will withstand the rigors of spirited driving and track days alike.

Performance Features

• Light to moderate pedal effort for daily drivability.
• Aggressive engagement for quicker shifts, ideal for competitive environments.
• Moderate friction life, boosted by ACT's unique diaphragm design.
• Engineered with high-quality ceramic friction materials for maximum heat tolerance.
• 100% clamp load tested and dynamically balanced for reliable performance at high RPMs.

Technical Specifications

• Clutch Disc Diameter: 9.4 in (240 mm)
• Disc Material: Ceramic
• Input Spline Quantity: 10
• Input Shaft Diameter: 1.375 in
• Pressure Plate Type: Heavy Duty
• Release Bearing Included: Yes
• Product Weight: 12.7 lbs
• Torque Capacity: 596 ft/lbs
• Flywheel Type: Streetlite

Installation Notes

This kit is designed for use with the stock dual-mass flywheel, and includes pressure plate bolts (M8-1.25 x 20mm) for a straightforward installation. For detailed installation instructions, CLICK HERE.

Real-World Feedback

BMW M3 owners have reported noticeable improvements in shift response and overall drivability after installing the BM9-HDR4. One M3 owner noted, "After putting this clutch in, my shifts feel sharper, and I can really feel the difference during track days. The engagement is aggressive, but it’s manageable for daily driving." Another user mentioned, "This clutch has transformed my driving experience—shifting is quicker and more precise, making it perfect for spirited drives on the weekends."

Final Thoughts

Whether you’re hitting the track or just enjoying spirited drives, the ACT HD/Race Rigid 4 Pad Kit BM9-HDR4 is engineered to meet the demands of high-performance driving. Upgrade your BMW M3’s clutch system and experience the difference in performance and reliability.