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ACT HD/Race Sprung 4 Pad Subaru Legacy | Outback | Forester | Baja | WRX 2005-2024
$1226.00
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Introducing the ACT SB11-HDG4 Heavy Duty Clutch Kit, a top-tier choice for performance enthusiasts looking to enhance their driving experience. This kit features ACT's renowned Heavy Duty pressure plate, designed with an exclusive diaphragm that significantly increases clamp load while minimizing deflection. This innovative design not only maximizes clutch life but also ensures reliable performance under demanding conditions.

One of the standout features of the SB11-HDG4 is its four-stage heat-treated diaphragm, which contributes to unparalleled performance and durability. Customers have noted that this clutch kit has transformed their driving dynamics, providing a noticeable improvement in responsiveness and engagement. One satisfied user remarked, "The pedal feel is just right—light enough for daily driving but aggressive when I need it on the track!"

The kit includes a 4-pad spring-centered race disc that effectively dampens torsional vibrations, ensuring quieter operation and reducing the risk of failure. Designed for smaller disc sizes in compact engines, this disc allows for faster shifting, making it an excellent choice for both street and race applications. As one customer put it, "Shifting has never felt so quick and precise—it's like a whole new car!"

Features:

  • Light to moderate pedal effort with aggressive engagement and minimal gear rattle.
  • Moderate friction life enhanced by the exclusive diaphragm design.
  • Engineered for high heat tolerance with select ceramic friction materials.
  • Ideal for high horsepower street or race use.
  • 100% clamp load tested and dynamically balanced for reliability at high RPMs.

Specifications:

  • Clutch Master Cylinder Included: No
  • Grease Included: Yes
  • Grade Type: Performance
  • Flywheel Included: Yes
  • Pressure Plate Type: Heavy Duty
  • Release Bearing Included: Yes
  • Clutch Disc Diameter: 9.4 in (240 mm)
  • Disc Material: Ceramic
  • Input Spline Quantity: 24
  • Input Shaft Diameter: 1 in
  • Alignment Tool Included: Yes
  • Disc Type: Sprung
  • Pressure Plate Bolts Included: Yes
  • Clutch Slave Cylinder Included: No
  • Flywheel Bolts Included: No
  • Flywheel Type: Streetlite
  • Product Weight: 28.5 lbs
  • Torque Capacity: 574 ft/lbs

Notes:

  • This conversion kit replaces the original 230mm clutch and must be used with the included ACT Flywheel. Be mindful that Subaru integrated 240mm clutch components during mid-2018MY production starting with VIN J806877, and ACT kits are not compatible with these revised OEM components.
  • Pressure plate bolts (M8-1.25 x 16mm) are included.

Product Fitment:

  • Subaru Baja 2006
  • Subaru Forester 2006-2008
  • Subaru Legacy 2005-2012
  • Subaru Outback 2005-2009
  • Subaru WRX 2006-2024

Upgrade your vehicle's performance with the ACT SB11-HDG4 Heavy Duty Clutch Kit and experience the difference in your driving experience!

Other Part Numbers:
ACT #actSB11-HDG4

Proposition 65

WARNING: Cancer and Reproductive Harm
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Vehicle
2006
Subaru Baja
2006-2008
Subaru Forester
2005-2012
Subaru Legacy
2005-2009
Subaru Outback
2006-2024
Subaru WRX

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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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