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  See more parts for Saab 9-2X
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ACT HD/Perf Street Sprung Kit Subaru 2005-2018 - SB5-HDSS

If you're looking to upgrade your clutch setup, the ACT Heavy Duty/Performance Street Sprung Kit SB5-HDSS is something you should definitely check out. This kit combines ACT's well-known Heavy Duty pressure plate with their popular street disc. What makes it stand out? Well, the pressure plate uses a unique diaphragm design that cranks up the clamp load while keeping deflection to a minimum. This means you get a longer-lasting clutch that can handle the heat. Each diaphragm goes through a thorough four-stage heat-treating process, ensuring it can take on whatever you throw at it.

The pressure plate is built tough, too. With precision cover stampings, it offers the rigidity you need for consistent performance. Now, let’s talk about the Performance Street disc. It’s made from premium organic materials with a high copper content, which means better heat transfer and a steel-backed lining that boosts durability. Plus, the reduced marcel in the disc allows for quicker shifts—perfect for those spirited drives or track days.

Install Instructions:

Features:

  • Pedal effort is light to moderate, so you won't feel like you're lifting weights every time you shift.
  • Thanks to ACT's diaphragm design, you get longer friction life—always a plus.
  • Each component is engineered and balanced for smooth operation, even at high RPMs.
  • This kit is versatile—perfect for both street cruising and race track action.
  • Every unit is 100% clamp load tested to ensure reliability.

Specifications:

  • Clutch Master Cylinder Included: No
  • Grease Included: Yes
  • Grade Type: Performance
  • Pilot Bushing Included: No
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Clutch Disc Diameter: 9 in (228 mm)
  • Disc Material: Organic
  • Input Spline Quantity: 24
  • Input Shaft Diameter: 1 in
  • Alignment Tool Included: Yes
  • Disc Type: Sprung Solid
  • Pressure Plate Bolts Included: No
  • Clutch Slave Cylinder Included: No
  • Flywheel Bolts Included: No
  • Pilot Bearing Included: Yes
  • Product Weight: 14.5 lbs
  • Torque Capacity: 420 ft/lbs
  • Torque Capacity Over OE: 0.32

Products Fitment:

  • Saab 9-2X 2006
  • Subaru Baja 2006
  • Subaru Forester 2006-2008
  • Subaru Legacy 2005-2012
  • Subaru Outback 2005-2009
  • Subaru WRX 2006-2018

So, if you're in the market for a clutch that can handle the demands of both daily driving and spirited weekend adventures, the ACT SB5-HDSS kit is worth a look. It’s built to last and designed to perform, making it a solid choice for any Subaru enthusiast.

Other Part Numbers:
ACT #actSB5-HDSS

Proposition 65

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

Vehicle
2006
 Saab 9-2X
2006
 Subaru Baja
2006-2008
 Subaru Forester
2005-2012
 Subaru Legacy
2005-2009
 Subaru Outback
2006-2018
 Subaru WRX

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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