Fitment Information: This clutch kit fits 2004 - 2021 Subaru STI. Features: ACT's T1R - S07 kit pairs a Mod - Twin 225 XX Sprung Race clutch with a well - loved Heavy Duty pressure plate. You'll experience predictable aggressive engagement, light pedal effort for quick shifting, and it can handle up to 895ft/lbs of torque on your STI. Ideal for drag, road, or rally racing. The Mod - Twin 225 HD Rigid Race Kit combines double ceramic friction surfaces and a solid Mono - Drive hub in a modular design for aggressive launches and rapid shifting in high - powered AWDs. Each diaphragm spring has a four - stage heat - treating process for a consistent light pedal feel. The puck - style friction plates with high - quality ceramic materials offer a high friction coefficient, great heat capacity, and long clutch life. They transfer torque to a heat - treated Mono - Drive chrome - moly hub, extending the input shaft life. The lightweight and rigid design enables quicker shifts and hassle - free service. This kit includes a CNC - machined and balanced flywheel, pressure plate cover, diaphragm spring, ceramic friction plates, Mono - Drive hub, 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: 895 ft/lbs. Feel: Predictable aggressive engagement, light pedal effort, quick shifting, with possible start - off judder and mild to moderate transmission gear noise. Recommended Use: Drag, road, or rally racing. ACT Difference: ACT applies tactical engineering to the MOD - TWIN, solving common twin - disc clutch trade - offs. The clutch is ultra - durable, customer - serviceable, long - lasting, and has high torque capacity. All are 100% clamp load tested, balanced, and SFI certified. What's Included: Mod Twin 225 HD Rigid Race Clutch Kit, Heavy Duty Pressure Plate, Alignment Tool, Flywheel, Release Bearing.
Using the clutch kit: Install the kit according to the included alignment tool and instructions. Make sure all components are properly seated and tightened. When starting your vehicle, be aware that there might be a bit of judder at the start, which is normal. During driving, enjoy the light pedal effort for quick shifting. Note: There may be mild to moderate transmission gear noise, which is part of the clutch's performance. Maintenance: Regularly check the clutch components for wear and tear. If you notice any issues like reduced performance or unusual noises, it might be time to inspect or replace parts. Since the Mod - Twin clutches are fully rebuildable, you can order most components separately to keep your clutch in top shape.
