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  See more parts for Dodge Colt
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ACT HD/Perf Street Sprung Kit Dodge | Mitsubishi | Plymouth 1988-2002 - MB3-HDSS

If you're looking to boost your ride's performance without sacrificing daily drivability, the MB3-HDSS HD/Perf Street Sprung Kit from ACT is a solid choice. This kit combines their renowned Heavy Duty pressure plate with a street-friendly disc that’s built to last. I’ve had the chance to put this setup through its paces, and let me tell you, it delivers on both performance and reliability.

The Heavy Duty pressure plate features a unique diaphragm design that cranks up the clamp load while minimizing deflection. What does that mean for you? Better clutch engagement and increased longevity. ACT takes it a step further with a four-stage heat treatment process for their diaphragms, which really makes a difference when you're pushing your vehicle hard. Plus, the precision cover stampings add a level of rigidity that keeps everything consistent, even at high RPMs.

Now, let’s talk about the Performance Street disc. It’s crafted from premium organic materials packed with high copper content, which helps with heat transfer. This means you can push your limits without worrying about fade. The steel-backed lining adds an extra layer of durability, and the reduced marcel allows for quicker shifts. Trust me, when you're in the heat of the moment, that responsiveness is a game changer.

Installing this kit is pretty straightforward, and if you need a hand, you can find the install instructions here. Here are some features that really stand out:

  • Light to moderate pedal effort makes it easy to drive around town.
  • Smooth engagement keeps things feeling natural, even if there's a bit of gear rattle.
  • The exclusive diaphragm design extends friction life, so you won’t be swapping clutches every season.
  • Engineered for both street and track use—perfect for those weekend warriors.
  • Each unit is 100% clamp load tested and dynamically balanced to ensure reliability at high RPMs.

As for the specs, here’s what you need to know:

  • Clutch Disc Diameter: 8.4 in (214 mm)
  • Input Spline Quantity: 20
  • Input Shaft Diameter: 0.875 in
  • Torque Capacity: 225 ft/lbs
  • Product Weight: 10.9 lbs

This kit fits a variety of models, including:

  • Dodge Colt (1989-1990 & 1993-1994)
  • Eagle Summit (1992-1994 & 1996)
  • Eagle Talon (1991-1994)
  • Hyundai Elantra (1993-1995)
  • Mitsubishi Eclipse (1990-1994)
  • Plymouth Laser (1990-1994)

In short, if you want a clutch kit that balances performance with everyday usability, the ACT MB3-HDSS is worth considering. It’s been a solid upgrade for my setup, and I think you’ll appreciate the difference it makes too.

Other Part Numbers:
ACT #actMB3-HDSS

Proposition 65

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

Vehicle
1989-1990, 1993-1994
 Dodge Colt
1992-1994, 1996
 Eagle Summit
1991-1994
 Eagle Talon
1993-1995
 Hyundai Elantra
1993-1995
 Hyundai Scoupe
1992-1994
 Hyundai Sonata
1990-1994
 Mitsubishi Eclipse
1992-1994
 Mitsubishi Expo LRV
1988-1993, 1995
 Mitsubishi Galant
1988-1989, 1992-2002
 Mitsubishi Mirage
1992-1994
 Plymouth Colt
1990-1994
 Plymouth Laser

ACT Banner

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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