If you're looking to upgrade your clutch setup, the ACT Heavy Duty/Performance Street Rigid Kit (BM9-HDSD) is a solid choice. This kit features ACT's most popular heavy-duty pressure plate, which is designed with a unique diaphragm that boosts clamp load. What does that mean for you? Less deflection and longer clutch life, which is a win-win in my book. The pressure plates go through a four-stage heat-treating process, so you know they’re built to handle the heat, literally. Plus, the precision cover stampings add a level of rigidity and consistency you'd expect from a top-tier product.
The clutch disc is where the magic happens. With a diameter of 9.4 inches (or 240 mm for you metric folks), it’s made from premium organic materials that have a high copper content. This helps with heat transfer, and the steel-backed lining ensures you won't be replacing it anytime soon. The chrome-moly hub is heat-treated for extra strength, and the rivet design is carefully thought out to maximize durability. The best part? This setup is the lightest street disc you can get, which means quicker shifts and a more engaging driving experience. It’s got that race-proven performance but is still manageable for everyday use.
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This kit is specifically made for the BMW M3 from 2001 to 2006, so you can trust it to fit right and perform well. If you’re serious about getting the most out of your ride, this clutch kit is definitely worth considering.
Other Part Numbers:
ACT #actBM9-HDSD
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
2001-2006 BMW M3 |
M3 | 2001-2006 |

If you've added boost, tuned for more power, or simply want better throttle control, then your stock clutch won't cut it. That?s where ACT (Advanced Clutch Technology) comes in delivering high-performance clutch kits and flywheels designed for real drivers who push their builds on the street, strip, or track.
ACT?s lineup includes everything from daily driver friendly HD kits to hardcore twin disc setups for serious horsepower. Whether you?re launching hard in a WRX, drifting in a 370Z, or canyon carving in an M3, ACT gives you the torque capacity and engagement you need without sacrificing drivability.
Why ACT? Because Power Without Control Is Useless.ACT doesn?t just make universal performance parts ? they build complete, vehicle-specific clutch solutions for enthusiast favorites. Whether you daily a Civic Type R, track a Subaru STI, drift a 240SX, or drag a Mustang GT, ACT offers the right clutch to match your build goals.
Top supported platforms include the Nissan 350Z/370Z, Toyota Supra A90, Chevy Camaro SS/ZL1, Mitsubishi Evo, Ford Focus RS/ST, and BMW M3/M4 ? each with clutch options tuned to your driving needs.
What ACT Offers:ACT isn?t hype ? it?s proven. Their clutches are SFI-certified, track-tested, and used by racers in drag, time attack, autocross, drift, and rally. But what really matters? They hold power, last longer, and feel right even after hundreds of hard launches or hours of canyon carving.
Whether you're upgrading for more power or replacing a tired OEM clutch, ACT gives you the bite, strength, and feel to drive harder with confidence. No compromises, no excuses just parts that work when it matters.