ACT Mod-Twin 225 XX Race Subaru Impreza | STI | WRX 2004-2021

If you’re looking to take your high-powered AWD to the next level, the Advanced Clutch Mod-Twin 225 XX Rigid Race Kit is worth checking out. This isn’t just any clutch kit; it’s built for those aggressive launches and rapid shifts that get your adrenaline pumping. What sets this kit apart is its unique design, featuring double the ceramic friction surfaces paired with a solid Mono-Drive hub. This modular setup means you get reliability without the fuss.

The diaphragm spring has undergone a four-stage heat treatment process, which gives you a consistent pedal feel without requiring too much effort. You won’t be fighting your clutch during those long drives or intense races. And speaking of intensity, the puck-style friction plates are made from high-quality ceramic materials that deliver a high friction coefficient and impressive heat capacity. This means not only do you get superior performance, but you also enjoy a longer clutch life.

Torque transfer? It’s handled smoothly thanks to the Mono-Drive chrome-moly hub, which is heat treated for added strength. This design extends the life of your input shaft with a continuous spline, so you can shift gears confidently knowing your setup can take the heat. Plus, the lightweight and rigid design allows for quicker shifts, making it easier to navigate tight corners or quick straights.

What’s in the kit? You get a CNC-machined and dynamically balanced flywheel, pressure plate cover, diaphragm spring, and those puck-style ceramic friction plates I mentioned earlier. There’s also the rigid Mono-Drive hub, floater, patented Monoloc Collar, release bearing, alignment tool, and even a pilot bearing if you need it. And the best part? The Mod-Twin clutches are fully rebuildable, so if you ever need to replace a component, you can do it without having to buy a whole new kit.

Install Instructions:

• For Instructions CLICK HERE

Features:

• Expect predictable, aggressive engagement. Just be ready for a bit of start-off judder and some mild transmission noise.
• Built with a forged aluminum cover and a mono-drive hub, this clutch is designed to last under tough conditions.
• It delivers maximum performance and can handle high heat thanks to its robust design and carefully selected materials.
• Ideal for drag racing, road racing, or rally events.
• ACT has tackled the common trade-offs found in twin disc clutches, resulting in a durable, serviceable clutch with a high torque capacity. Plus, it’s all SFI certified and balanced.

Specifications:

• Clutch Master Cylinder Included: No
• Grease Included: Yes
• Grade Type: Performance
• Flywheel Included: Yes
• Pressure Plate Type: Maxx Xtreme
• Release Bearing Included: Yes
• Clutch Disc Diameter: 8.8 in (225 mm)
• Disc Material: Ceramic
• Input Spline Quantity: 24
• Input Shaft Diameter: 1 in
• Alignment Tool Included: Yes
• Disc Type Sprung Solid: Solid
• Pressure Plate Bolts Included: No
• Clutch Slave Cylinder Included: No
• Flywheel Bolts Included: No
• Product Weight: 28.1 lbs
• SFI: 1.2
• Torque Capacity: 1340 ft/lbs (2.75 times over OE)

Products Fitment:

• Subaru Impreza 2004-2014
• Subaru STI 2004-2021
• Subaru WRX 2004-2020

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