Subaru WRX STI Clutch Kit - ACT - Mod-Twin XT Sprung Race - `04-`20. A competition-grade Mod-Twin clutch assembly designed for high-powered WRX STI applications to increase torque capacity and manage heat under intense driving conditions.

The T2R-S05 Mod-Twin 225 XT pairs twice the ceramic friction surfaces with an ultra-durable Mono-Drive sprung hub in a modular design for aggressive launches and smoother shifting in AWD platforms. Diaphragm springs undergo a four-stage heat treating process to deliver a consistent, light pedal feel while puck-style ceramic friction plates provide a high friction coefficient, improved heat capacity and extended wear life. The sprung Mono-Drive hub helps reduce driveline shock and extends input shaft life. This kit includes a CNC-machined, dynamically balanced flywheel, pressure plate cover, diaphragm spring face, puck-style ceramic friction plates, sprung Mono-Drive hub assembly, floater, patented Monoloc collar, release bearing, alignment tool and pilot bearing if needed. The Mod-Twin design is fully rebuildable and many components can be ordered separately. Users should expect predictable aggressive engagement, light pedal effort and quick shifting; some start-off judder and OE-to-mild transmission gear noise are possible.

Features

• Mod-Twin twin-disc design with ceramic friction plates
• Mono-Drive sprung hub to reduce driveline shock and protect input shaft
• CNC-machined, dynamically balanced flywheel included
• Diaphragm springs with four-stage heat treating for consistent pedal feel
• Fully rebuildable; many service parts available separately
• Rated torque capacity: 1120 ft·lbs — Not For Street Use
• SFI tested, balanced, forged aluminum cover and hardened wear points

If you have questions or want help choosing the right setup, call us directly — we’re happy to advise. We offer installation and customization services at our two locations in Austin, Texas and the Los Angeles, California area. Call 512-982-9393 (TX) or 562-981-6800 (CA). If you’re considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov