ACT Heavy Duty Clutch Kit 4 Puck Sprung Disc Subaru STI 2004-2021 / Legacy GT Spec B 2007-2009 | SB10-HDG4

This ACT heavy - duty clutch kit is a top - notch choice for your Subaru. It fits 2004 - 2021 Subaru STI and 2007 - 2009 Subaru Legacy GT Spec B models. Note that Legacy GT spec.B models need to use the STI flywheel to use this clutch. The SB10 - HDG4 kit features a sprung, 4 - pad race clutch disc paired with an Xtreme pressure plate. You'll enjoy light to moderate pedal effort, aggressive engagement, and it can handle up to 668 ft/lbs of torque. Ideal for high - horsepower street or race use. ACT's heavy - duty pressure plates use an exclusive diaphragm design. This design increases clamp load, reduces deflection, and maximizes clutch life. All diaphragms go through a four - stage heat - treating process for amazing performance. The pressure plates have precision cover stampings for rigidity and consistency. The 4 - pad spring - centered race disc dampens torsional vibrations for quiet operation and resists failure even in tough conditions. Its spring retainers offer great support and reliability. With this disc, engagement is harsher but shifting is faster, perfect for smaller engines. The Monoloc is a one - piece upgrade. Its spring tension is carefully calculated for optimal performance, ensuring proper alignment. Made of hardened Chrome - moly steel, it will serve you for years. This kit includes a 4 - pad sprung race disc, an Xtreme pressure plate, an alignment tool, a pilot bearing, and a release bearing.

Using this ACT clutch kit is a breeze. First, make sure your vehicle is the right model - 2004 - 2021 Subaru STI or 2007 - 2009 Subaru Legacy GT Spec B. If you have a Legacy GT spec.B, remember to use the STI flywheel. When installing, use the alignment tool included in the kit to ensure everything is in place. The pilot bearing and release bearing should be installed carefully according to the standard procedures. When you start driving, you'll notice the light to moderate pedal effort. Enjoy the aggressive engagement, but be a bit careful at first as it might be different from what you're used to. For maintenance, check the clutch regularly for any signs of wear and tear. If you notice any unusual noises or a change in the pedal feel, it's a good idea to have it inspected. Also, keep the clutch clean from dirt and debris. With proper use and maintenance, this high - quality clutch kit will last you a long time and provide a great driving experience on the street or the race track.