Fitment: This clutch kit is a perfect match for 2004 - 2021 Subaru STI. Features: ACT's T1S - S05 kit combines a Mod - Twin 225 sprung clutch disc with a popular Heavy Duty pressure plate. You'll enjoy soft progressive engagement with light pedal effort and the clutch can handle up to 700ft/lbs of torque. It's ideal for street or street/strip use. The Mod - Twin 225 HD Sprung Street Kit is made for high - powered AWD street cars. It offers great pedal feel, durability, and engagement quality along with high torque capacity. It uses twice the organic friction surfaces and an ultra - durable spring center Mono - Drive hub in a modular design. The diaphragm springs go through a four - stage heat treating process for a consistent light pedal feel. The steel - backed Friction Plates with high - quality organic materials provide a stable friction coefficient, good heat capacity, and a long clutch life. They transfer torque evenly to the Mono - Drive sprung hub assembly, extending input shaft life and reducing driveline shock. This kit includes a CNC - machined and balanced flywheel, pressure plate cover, diaphragm spring, 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: 700 ft/lbs. Feel: Soft progressive engagement, light pedal effort, quick shifting with mild to moderate transmission gear noise. Recommended Use: Street or Street/Strip. ACT Difference: ACT applies tactical engineering to the MOD - TWIN, offering unique solutions to common twin - disc clutch issues. All products are 100% clamp load tested, balanced, and SFI certified. What's Included: Mod Twin 225 XT Sprung Street Clutch Kit, Heavy Duty Pressure Plate, Alignment Tool, Flywheel, Release Bearing.
Using this clutch kit is straightforward. First, make sure your vehicle is a 2004 - 2021 Subaru STI. Install the kit following the included alignment tool and other components as per the standard installation process. When driving, you'll notice the soft engagement and light pedal effort. Just keep in mind that there might be mild to moderate transmission gear noise, but that's normal for this type of clutch. For maintenance, regularly check the clutch for wear. If you notice any decrease in performance or unusual noises, it could be a sign that parts need to be inspected. Since the Mod - Twin clutches are fully rebuildable, most components can be ordered separately and replaced when necessary. Keep the clutch clean and avoid harsh driving conditions as much as possible to extend its lifespan.
