If you're looking to upgrade your clutch setup, the ACT SB11-HDSS kit is where it’s at. This isn't just any clutch kit; it combines the Heavy Duty pressure plate with a street disc that’s proven to handle the demands of daily driving and spirited weekend runs. The pressure plate features a unique diaphragm design that cranks up the clamp load while cutting down on deflection. What does that mean for you? More grip and a longer-lasting clutch, plain and simple.

Each diaphragm goes through a serious four-stage heat-treating process to ensure it can take the heat, literally. You’ll notice the difference in how solidly it engages, thanks to precision cover stampings that add rigidity and consistency. The Performance Street disc is made from high-quality organic materials with a good amount of copper mixed in, which helps with heat transfer. Plus, it’s got a steel-backed lining that boosts burst strength and durability. This setup is designed to give you quicker shifts, which is always a plus on the road or track.

Installation is straightforward:

• For detailed instructions, CLICK HERE

What makes this kit stand out?

• Pedal feel is light to moderate, making it easy to drive around town, but you still get smooth engagement and a bit of gear rattle for that sporty feel.
• Thanks to ACT's diaphragm design, you’ll enjoy a longer friction life—no one wants to swap clutches every few months.
• These parts are engineered with care, using premium materials that handle heat well and resist fade.
• It's versatile enough for both street driving and track days.
• Every component is clamp load tested and balanced, so you can push it to high RPMs without worrying about reliability.

Here are the specs you should know:

• Clutch Master Cylinder: Not included
• Grease: Yes, included
• Grade Type: Performance
• Flywheel: Yes, included
• Pressure Plate: Heavy Duty
• Release Bearing: Yes, included
• Clutch Disc Diameter: 9.4 inches (240 mm)
• Disc Material: Organic
• Input Spline Quantity: 24
• Input Shaft Diameter: 1 inch
• Alignment Tool: Yes, included
• Disc Type: Sprung Solid
• Pressure Plate Bolts: Yes, included
• Clutch Slave Cylinder: Not included
• Flywheel Bolts: Not included
• Flywheel Type: Streetlite
• Product Weight: 28.6 lbs
• Torque Capacity: 449 ft/lbs
• Torque Capacity Over OE: 0.39

Important Notes:

• This is a conversion kit that replaces the original 230mm clutch. You must use the ACT Flywheel that's included. If your Subaru was made after mid-2018, you might have the revised OEM components, which aren’t compatible with this kit. Also, pressure plate bolts are included (M8-1.25 x 16mm).

Compatible Vehicles:

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