Fitment Information: This clutch kit fits 2004 - 2021 Subaru STI models. Features: ACT's T1R - S05 kit combines a Mod - Twin 225 sprung race clutch disc with a popular heavy - duty pressure plate. You'll enjoy predictable aggressive engagement, light pedal effort, and smooth shifting, and it can handle up to 895ft/lbs of torque on your STI. It's perfect for drag, road, or rally racing. The Mod - Twin 225 HD Sprung Race Kit offers aggressive launches and smoother shifting in high - powered AWDs. It has twice the ceramic friction surfaces and an ultra - durable Mono - Drive sprung hub assembly in a modular design. Each diaphragm spring goes through a four - stage heat - treating process for a consistent light pedal feel. The puck - style friction plates with high - quality ceramic materials provide a high friction coefficient, great heat capacity, and a long clutch life. They transfer torque evenly to the Mono - Drive sprung hub assembly, which extends input shaft life and reduces driveline shock. This kit includes a CNC - machined and 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). Mod - Twin clutches are fully rebuildable, and most components can be ordered separately. Torque Capacity (ft/lbs.): 895. Feel: Predictable aggressive engagement, light pedal effort, smooth shifting, possible start - off judder with OE to mild transmission gear noise. Recommended Use: Ideal for Drag, Road, or Rally Racing. ACT Difference: ACT applies smart engineering to the MOD - TWIN, solving common twin - disc clutch issues. The result is an ultra - durable, serviceable, long - lasting clutch with high torque capacity. All are 100% clamp load tested, balanced, and SFI certified. What's Included: Mod Twin 225 XT Sprung Race Clutch Kit, Heavy Duty Pressure Plate, Alignment Tool, Flywheel, Release Bearing.
Using this clutch kit is straightforward. First, make sure your Subaru STI is from 2004 - 2021 as this kit is specifically designed for these models. When installing, use the included alignment tool to ensure everything is in the right place. You'll notice the light pedal effort and smooth shifting right away. For racing, whether it's drag, road, or rally, this clutch can handle up to 895ft/lbs of torque, giving you reliable performance. When it comes to maintenance, keep an eye on the friction plates. Since they have high - quality ceramic materials, they last a long time, but check them regularly for wear. If you notice any start - off judder or unusual transmission noise, it might be a sign to inspect the clutch. The great thing about this clutch is that it's fully rebuildable. Most components can be ordered separately, so if something does wear out, you don't have to replace the whole kit. Just remember to follow the standard safety procedures when working on your vehicle's clutch system.
