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  See more parts for Subaru Baja
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ACT 4 Pad Rigid Race Disc Subaru Baja | Forester | Impreza | Legacy | Outback | STI | WRX 2002-2024 - 4240018
ACT 4 Pad Rigid Race Disc Subaru Baja | Forester | Impreza | Legacy | Outback | STI | WRX 2002-2024 - 4240018 - Image 3 ACT 4 Pad Rigid Race Disc Subaru Baja | Forester | Impreza | Legacy | Outback | STI | WRX 2002-2024 - 4240018 - Image 2 ACT 4 Pad Rigid Race Disc Subaru Baja | Forester | Impreza | Legacy | Outback | STI | WRX 2002-2024 - 4240018 - Image 3

If you're serious about getting the most out of your Subaru's performance, the Advanced Clutch 4 Pad Rigid Race Disc 4240018 is a game changer. This isn't just any clutch disc; it's built from high-quality ceramic friction materials that really stand up to the heat of competition. You’ll notice the difference right away—while the engagement is a bit harsher, it allows for quicker shifts that can shave precious seconds off your lap times.

One of the standout features here is the robust rivet design. These aren't your average fasteners; they’re top-grade, carefully selected for maximum strength. You want a clutch that can take a beating, and this one’s got your back. The 4-pad design is particularly well-suited for smaller engines, making it an ideal fit for those of us who love to push our Subarus to the limit.

Now, let’s talk about installation. If you're looking to tackle this project yourself, you can find the detailed installation instructions here. It’s worth the effort, trust me.

When it comes to performance, this disc doesn’t hold back. It offers aggressive engagement and quick shifts, but be prepared for a bit more gear rattle. The ceramic materials provide a moderate wear rate and can handle high heat, although the rigid design might increase spline wear over time. Just keep that in mind if you're planning on using it regularly on the track.

Another thing I appreciate is the lightweight design. The chromoly hub is heat-treated, which means it’s built to last. This disc can hold 28% more torque than standard organic materials, which is a big deal when you’re looking to maximize your power output. Just remember, this disc is recommended for race use only—it's not for the faint of heart.

Here are some specs to keep in mind:

  • Diameter: 9.4 in (240 mm)
  • Spline Quantity: 24
  • Grade Type: Performance
  • Disc Material: Ceramic
  • Splined Bore Diameter: 1 in
  • Disc Type: Solid
  • Product Weight: 2 lbs
  • SFI Rating: 1.1

This clutch disc fits a variety of Subaru models, including:

  • Subaru Baja (2003-2006)
  • Subaru Forester (2003-2008)
  • Subaru Impreza (2000-2021)
  • Subaru Legacy (2005-2020)
  • Subaru Outback (2005-2009)
  • Subaru STI (2004-2021)
  • Subaru WRX (2006-2024)

In short, if you're looking to elevate your racing game, the 4240018 ACT 4 Pad Rigid Race Disc is worth considering. It's tough, reliable, and designed for those who take their performance seriously.

Other Part Numbers:
ACT #act4240018

Proposition 65

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

Vehicle
2003-2006
 Subaru Baja
2003-2008
 Subaru Forester
2000-2021
 Subaru Impreza
2005-2020
 Subaru Legacy
2005-2009
 Subaru Outback
2004-2021
 Subaru STI
2006-2024
 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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