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  See more parts for BMW M3
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ACT HD/Race Sprung 4 Pad Kit BMW M3 2001-2006 - BM9-HDG4

ACT Advanced Clutch HD/Race Sprung 4 Pad Kit BM9-HDG4

If you're a BMW M3 owner from 2001 to 2006, the ACT BM9-HDG4 clutch kit is designed to take your performance to the next level. This kit features ACT's renowned Heavy Duty pressure plate, which utilizes an exclusive diaphragm design to enhance clamp load, minimize deflection, and extend clutch life. Each diaphragm undergoes a rigorous four-stage heat-treating process, ensuring it can handle the demands of high-performance driving.

Fitment

This clutch kit is specifically engineered for:

  • BMW M3 (2001-2006)

Key Features

  • Light to moderate pedal effort with aggressive engagement, ideal for spirited driving.
  • Moderate friction life, optimized by ACT's advanced diaphragm technology.
  • Constructed with select ceramic friction materials for high heat tolerance and maximum performance.
  • Perfect for high-horsepower street or race applications.
  • 100% clamp load tested and dynamically balanced for smooth operation 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
  • Torque Capacity: 596 ft/lbs
  • Product Weight: 14.8 lbs
  • Grease Included: Yes
  • Release Bearing Included: Yes
  • Alignment Tool Included: Yes
  • Pressure Plate Bolts Included: Yes (M8-1.25 x 20mm)

Installation Notes

For the best results, it?s essential to use an ACT flywheel with sprung hub discs to ensure proper clearance. The flywheel is not included with this kit, so plan accordingly.

For detailed installation instructions, CLICK HERE.

Customer Feedback

BMW M3 owners have praised this kit for its performance. One user noted, "I installed the ACT BM9-HDG4 in my 2005 M3, and the difference was night and day. The engagement is definitely harsher, but it allows for quicker shifts and a more connected feel during spirited drives." This kit is a solid upgrade for those looking to enhance their M3's performance without compromising reliability.

Conclusion

The ACT BM9-HDG4 clutch kit is a must-have for BMW M3 enthusiasts looking to improve their vehicle's performance. With its robust design and proven technology, you can trust this clutch kit to deliver the power and reliability you need on the street or the track.

Other Part Numbers:
ACT #actBM9-HDG4

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle Make/Model
BMW M3 2001-2006 Base

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ACT ? Advanced Clutch Technology | Clutch Kits & Flywheels Built to Handle Real Power

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.
  • Hold More Power Engineered to handle turbo, supercharger, and high-compression builds
  • Faster Engagement Stronger pressure plates for better bite off the line
  • Better Pedal Feel Balanced response without going full race-car stiff
  • Reduced Rotational Mass Lightweight flywheels improve rev-matching and response
  • No Guesswork Direct-fit applications, no fabbing, no hassle
ACT Clutch Kits and Flywheels Fit the Cars Enthusiasts Build

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:
  • Performance Clutch Kits From HD street kits to twin-disc race systems
  • Clutch Discs 6-puck, full-face, rigid or sprung to match your style
  • Pressure Plates Heavy-duty options that increase clamp load without sacrificing control
  • Chromoly Lightweight Flywheels Quicker revs, smoother shifts, and less drivetrain stress
  • Complete Hardware Kits Everything you need for a proper install
Performance Tested. Driver Approved.

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.

ACT warrants all products to be free of defects in materials and workmanship for normal use and service for a period of one (1) year from retail purchase. Written notice must be immediately given to ACT within the warranty period. We require a copy of the purchase receipt showing the unit was purchased from an Authorized Dealer or Advanced Clutch Technology directly to verify the product is under warranty. Products purchased used do not carry a warranty. This warranty is to the original purchaser and is non-transferable. All non-warranty items are subject to a $50 inspection bench test fee.

ACT reserves the right to examine any part returned for warranty claim to determine, to ACT's satisfaction, whether the material or workmanship of the part does not conform to this limited warranty. ACT's obligation under this warranty shall be limited to repairing, replacing, or crediting, at its option, any part which is deemed covered by ACT. No labor, lift or storage charges will be reimbursed for any reason. Damage to ACT's parts resulting from misuse, improper use, or abuse shall void this limited warranty. Failure to follow ACT's installation instructions and the vehicle manufacturers installation procedures and specifications shall void this limited warranty.

ACT undertakes no responsibility for the quality of the goods except as otherwise provided in this contract. ACT assumes no responsibility that the goods will be fit for any particular purpose for which you may be buying these goods, except as otherwise provided in the contract. ACT shall not be liable for any damage or injury to persons or property resulting from improper installation or misuse of any part subject to this warranty.

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