If you're looking to enhance the performance of your ride, the Advanced Clutch HD/Race Rigid 4 Pad Kit MB4-HDR4 is a top-tier choice. Designed for enthusiasts who demand reliability and responsiveness, this kit features ACT's renowned Heavy Duty pressure plate, which utilizes an exclusive diaphragm design to boost clamp load while reducing deflection. This means you get a clutch that not only lasts longer but also performs better under pressure.
The MB4-HDR4 is compatible with a variety of models, making it a versatile choice for many enthusiasts:
Ready to install? For detailed instructions, CLICK HERE.
Here’s what some owners are saying:
Upgrade your clutch system with the ACT MB4-HDR4 kit and experience the difference in performance and reliability. Perfect for those who take their driving seriously!
Other Part Numbers:
ACT #actMB4-HDR4
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov
| Make Vehicle | Model | Year |
|---|---|---|
|
1984-1986 Dodge Colt |
Colt | 1984-1986 |
|
1989-1994, 1996 Eagle Summit |
Summit | 1989-1994, 1996 |
|
1993-1994 Eagle Talon |
Talon | 1993-1994 |
|
1992-1993 Hyundai Elantra |
Elantra | 1992-1993 |
|
1990-1994 Hyundai Excel |
Excel | 1990-1994 |
|
1991-1995 Hyundai Scoupe |
Scoupe | 1991-1995 |
|
1983-1988 Mitsubishi Cordia |
Cordia | 1983-1988 |
|
1990-1994 Mitsubishi Eclipse |
Eclipse | 1990-1994 |
|
1991-2002 Mitsubishi Mirage |
Mirage | 1991-2002 |
|
1989-1993 Mitsubishi Precis |
Precis | 1989-1993 |
|
1983-1988 Mitsubishi Tredia |
Tredia | 1983-1988 |
|
1979-1980 Plymouth Arrow |
Arrow | 1979-1980 |
|
1982 Plymouth Champ |
Champ | 1982 |
|
1990-1994 Plymouth Laser |
Laser | 1990-1994 |

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.