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  See more parts for Chevrolet Camaro
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ACT HD/Perf Street Sprung Kit Chevrolet Camaro | Camaro Z28 | Corvette | Corvette Z06 2006-2015 - GM12-HDSS

ACT GM12-HDSS Heavy Duty Clutch Kit

If you're looking to enhance the performance of your 2010-2015 Chevrolet Camaro or 2006-2013 Chevrolet Corvette, the ACT GM12-HDSS Heavy Duty Clutch Kit is a game-changer. This kit combines ACT's most popular Heavy Duty pressure plate with a high-performance street disc, engineered for both durability and responsiveness. Designed for the spirited driver, this clutch kit is perfect for those who demand reliability whether on the street or the track.

Why Choose the GM12-HDSS?

The ACT Heavy Duty pressure plate features an exclusive diaphragm design that boosts clamp load while minimizing deflection. This means a longer clutch life and improved performance under pressure. Each diaphragm undergoes a meticulous four-stage heat-treating process, ensuring that it can handle the heat generated during spirited driving or racing.

Features

  • Light to moderate pedal effort for a comfortable driving experience.
  • Smooth positive engagement that’s perfect for both daily driving and aggressive launches.
  • Longer friction life thanks to ACT's innovative diaphragm design.
  • Engineered with premium organic materials for enhanced heat tolerance and reduced fade.
  • 100% clamp load tested and dynamically balanced for high RPM reliability.

Technical Specifications

  • Clutch Disc Diameter: 11 in (280 mm)
  • Input Spline Quantity: 26
  • Input Shaft Diameter: 1.125 in
  • Torque Capacity: 709 ft/lbs (0.42 over OE)
  • Product Weight: 43.9 lbs
  • Pressure Plate Type: Heavy Duty
  • Disc Material: Organic
  • Flywheel Type: Prolite (included in kit)
  • Alignment Tool Included: Yes
  • Pilot Bearing Included: Yes

Installation Instructions

For detailed installation guidance, CLICK HERE.

Fitment

This clutch kit is compatible with the following models:

  • Chevrolet Camaro (2010-2015)
  • Chevrolet Camaro Z28 (2014-2015)
  • Chevrolet Corvette (2006-2013)
  • Chevrolet Corvette Z06 (2006-2013)

Customer Feedback

A Camaro owner noted, "After installing the GM12-HDSS, my 2013 Camaro feels more responsive than ever. The shifts are crisp, and I can feel the extra grip during hard launches!"

Another Corvette enthusiast shared, "The clutch engagement is smooth and predictable. I’ve taken my 2010 Z06 to the track, and it held up beautifully under heavy use."

Important Notes

  • Must use ACT flywheel (included in kit) or LS Flat flywheel for optimal performance.

Other Part Numbers:
ACT #actGM12-HDSS

Proposition 65

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

Vehicle
2010-2015
 Chevrolet Camaro
2014-2015
 Chevrolet Camaro Z28
2006-2013
 Chevrolet Corvette
2006-2013
 Chevrolet Corvette Z06

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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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