Fitment Information: This clutch kit fits 2004 - 2021 Subaru STI. Features: ACT's T3R - S05 kit offers a Mod - Twin 225 XX Sprung Race clutch. You'll experience predictable aggressive engagement, increased pedal effort, and smooth shifting. It can handle up to 1340ft/lbs of torque, making it perfect for drag, road, or rally racing. The Mod - Twin 225 XX Sprung Race Kit combines double ceramic friction surfaces with a durable Mono - Drive sprung hub in a modular design. This allows for aggressive launches and smoother shifting in high - powered AWDs. The diaphragm springs go through a four - stage heat - treating process for a consistent pedal feel. The puck - style friction plates with high - quality ceramic materials have a high friction coefficient, great heat capacity, and a long lifespan. They transfer torque evenly to the Mono - Drive hub, extending the input shaft life and reducing driveline shock. The kit includes a CNC - machined and balanced flywheel, pressure plate cover, diaphragm spring, ceramic friction plates, sprung Mono - Drive hub, floater, patented Monoloc Collar, release bearing, alignment tool, and pilot bearing (if needed). It's fully rebuildable and most parts can be ordered separately. Torque Capacity: 1340ft/lbs. Feel: Predictable aggressive engagement, increased 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. It's ultra - durable, serviceable, long - lasting, and has high torque capacity. All products are 100% clamp load tested, balanced, and SFI certified. What's Included: Mod Twin 225 XX Sprung Race Clutch Kit, Pressure Plate, Alignment Tool, Flywheel, Release Bearing.
Using your ACT Mod Twin 225 XX Sprung Race Clutch Kit is straightforward. First, make sure your Subaru STI (2004 - 2021) is turned off and on a stable surface. Follow the included alignment tool instructions to install the clutch kit correctly. When you start driving, expect a bit more pedal effort than usual, but it gives you better control. For aggressive driving like in drag, road, or rally racing, this clutch can handle high torque well. However, be aware that there might be a bit of start - off judder and some mild transmission gear noise, which is normal. As for maintenance, check the clutch components regularly for wear and tear. Since the kit is fully rebuildable, if you notice any parts are getting worn out, you can order most of them separately and replace them. Keep the clutch clean and dry to extend its lifespan. And always refer to the ACT's official guidelines if you have any doubts.
