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  See more parts for Mitsubishi Lancer
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ACT HD/Perf Street Sprung Kit Mitsubishi Lancer 2002-2006 - MB8-HDSS

If you're looking to upgrade your Mitsubishi Lancer from 2002 to 2006, the ACT MB8-HDSS Heavy Duty/Performance Street Sprung Kit is a solid choice. I've had my hands on this kit, and let me tell you, it’s not just a bunch of specs on a paper. This setup features ACT's most popular heavy-duty pressure plate paired with a performance street disc that really knows how to deliver. The diaphragm design on the pressure plate is something special; it ramps up the clamp load while cutting down on deflection, which means you’re getting more life out of your clutch. Plus, they go through a four-stage heat-treating process that really sets it apart when it comes to performance. The pressure plate itself is built with precision cover stampings, giving it that extra rigidity and consistency you want when you're pushing your car to its limits. Now, about that performance street disc—it's made from premium organic materials with a high copper content. This isn’t just for show; it helps with heat transfer, and the steel-backed lining adds a layer of durability that’s hard to beat. The reduced marcel means quicker shifts, so whether you’re cruising around town or hitting the track, you can count on fast engagement and reliability.When it comes to installation, you’ll want to check out the install instructions here. It’s straightforward, but a little guidance never hurts.Here’s what you can expect:

  • Light to moderate pedal effort, which means it won’t wear you out in traffic.
  • Smooth engagement that complements the OE feel but with a bit more bite.
  • Longer friction life, thanks to that exclusive diaphragm design ACT has going on.
  • Engineered for both street and race use—this kit is versatile.
  • Each piece is 100% clamp load tested and dynamically balanced for reliable high RPM performance.
Specifications:
  • Clutch Master Cylinder: Not included
  • Grease: Yes, it comes with some
  • Grade Type: Performance
  • Flywheel: Not included
  • Pilot Bushing: Not included
  • Pressure Plate Type: Heavy Duty
  • Release Bearing: Not included
  • Clutch Disc Diameter: 8.4 inches (214 mm)
  • Disc Material: Organic
  • Input Spline Quantity: 20
  • Input Shaft Diameter: 0.875 inches
  • Alignment Tool: Included
  • Disc Type: Sprung Solid
  • Pressure Plate Bolts: Not included
  • Clutch Slave Cylinder: Not included
  • Flywheel Bolts: Not included
  • Pilot Bearing: Not included
  • Weight: 10.4 lbs
  • Torque Capacity: 225 ft/lbs, which is 0.34 over OE.

This kit isn’t just a part; it’s an upgrade that can really change the way your Lancer drives. If you’re serious about performance, you’ll want to give this a shot.

Other Part Numbers:
ACT #actMB8-HDSS

Proposition 65

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

Vehicle
2002-2006
 Mitsubishi Lancer

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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