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  See more parts for Saab 9-2X
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ACT HD/Race Rigid 4 Pad Kit Saab 9-2X | Subaru Baja | Forester | Impreza | Legacy | WRX | Outback 2000-2022 - SB5-HDR4

ACT SB5-HDR4 Heavy Duty/Race Rigid 4 Pad Clutch Kit

For those looking to elevate their performance game, the ACT SB5-HDR4 Heavy Duty/Race Rigid 4 Pad Clutch Kit is a top-tier choice tailored for your Subaru or Saab. This clutch kit is engineered for serious enthusiasts who demand precision and reliability on the track or during spirited drives. With a focus on improving your vehicle's performance, this kit is compatible with a range of models, including:

  • Saab 9-2X (2006)
  • Saab 9-2X Wagon (2005-2006)
  • Subaru Baja (2003-2006)
  • Subaru Forester (2003-2008)
  • Subaru Impreza (2000-2011)
  • Subaru Legacy (2005-2020)
  • Subaru Outback (2005-2009)
  • Subaru WRX (2006-2022)

Key Features

  • Designed with a Heavy Duty pressure plate that enhances clamp load and reduces deflection for maximum clutch longevity.
  • Constructed using high-quality ceramic friction materials for superior heat resistance and performance.
  • Lightweight, rigid design allows for quicker shifts, making it ideal for those who crave rapid gear changes.
  • 4-pad rigid race disc provides aggressive engagement, perfect for track use, though it may increase gear rattle.
  • Each diaphragm undergoes a rigorous four-stage heat-treating process to ensure durability and performance.

Specifications

  • Clutch Disc Diameter: 9 in (228 mm)
  • Input Spline Quantity: 24
  • Input Shaft Diameter: 1 in
  • Torque Capacity: 535 ft/lbs
  • Product Weight: 13 lbs
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Alignment Tool Included: Yes
  • Grease Included: Yes

Installation Instructions

Ready to install? Get your hands on the installation guide here.

Real-World Feedback

A Subaru WRX owner shared, ?After installing the ACT SB5-HDR4, I noticed a significant improvement in my shifting. The engagement is definitely more aggressive, but it allows me to shift faster during track days without any hiccups.? Another customer who fitted this kit on their 2006 Saab 9-2X noted, ?The pedal feel is just right for spirited driving, and I love the added torque capacity for my tuned engine.?

Upgrade your clutch setup with the ACT SB5-HDR4 and experience the difference in performance, reliability, and driving enjoyment. This kit is not just an upgrade; it's a commitment to enhancing your driving experience.

Other Part Numbers:
ACT #actSB5-HDR4

Proposition 65

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

Vehicle
2006
 Saab 9-2X
2005-2006
 Saab 9-2X Wagon
2003-2006
 Subaru Baja
2003-2008
 Subaru Forester
2000-2011
 Subaru Impreza
2005-2020
 Subaru Legacy
2005-2009
 Subaru Outback
2006-2022
 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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