ACT Heavy Duty Performance Street Clutch Kit Subaru STI 2004-2021 / Legacy GT Spec B 2007-2009 | SB10-HDSS

This ACT clutch kit is a great 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 - HDSS kit features a sprung performance street clutch disc paired with a heavy - duty pressure plate. You'll enjoy a light to moderate pedal feel, smooth engagement, and it can handle up to 522 ft/lbs of torque. It's perfect for both street and race use. The heavy - duty pressure plates use an exclusive diaphragm design to increase clamp load, reduce deflection, and maximize clutch life. The diaphragms go through a four - stage heat - treating process. The precision cover stampings provide rigidity and consistency. The performance street discs are popular, made of premium organic materials with high copper content for better heat transfer and steel - backed lining for more durability. They have a reduced marcel for faster shifts and quiet operation. The Monoloc is a one - piece replacement for the standard two - piece in pull - type clutches. Its spring tension is carefully calculated for optimal performance, ensuring proper alignment. The kit includes a performance street sprung disc, a heavy - duty pressure plate, an alignment tool, a pilot bearing, and a release bearing. But it doesn't include a flywheel, and the ACT Streetlite Flywheel can be bought separately.

Using this ACT clutch kit is straightforward. 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, don't forget to use the STI flywheel. When installing, follow the included alignment tool to ensure everything is in place. As you drive, you'll notice the light to moderate pedal feel and smooth engagement. This clutch can handle up to 522 ft/lbs of torque, so you can use it for both street driving and racing. For maintenance, keep an eye on the clutch's performance. If you notice any strange noises or a change in the pedal feel, it might be time to check it. The pressure plates and discs are designed to last, but regular inspection can help catch any issues early. And remember, this kit doesn't come with a flywheel, so if you need one, you can buy the ACT Streetlite Flywheel separately.