Product Information
This ACT clutch kit, model SB10 - HDSS, is designed specifically for 2004 - 2021 Subaru STI and 2007 - 2009 Subaru Legacy GT Spec B. Note that Legacy GT spec.B models need to use the STI flywheel to use this clutch. The kit features a sprung performance street clutch disc paired with a popular heavy - duty pressure plate. You'll experience a light to moderate pedal feel, smooth engagement, and it can handle up to 522 ft/lbs of torque. It's great for both street and race use. ACT's heavy - duty pressure plates use an exclusive diaphragm design to boost clamp load, reduce deflection, and extend clutch life. The diaphragms go through a four - stage heat - treating process for top - notch performance. The pressure plates have precision cover stampings for rigidity and consistency. The performance street discs are very popular. They're made of premium organic materials with high copper content for better heat transfer and have a steel - backed lining for greater strength and durability. They also have a reduced marcel for faster shifting. The kit operates quietly with increased strength and reliability. The Monoloc, a one - piece component, is a direct replacement or upgrade for the standard two - piece wedge collar and wire ring in pull - type clutches. Its segmented retaining ring's spring tension is carefully calculated for optimal performance, ensuring proper alignment. The hardened chrome - moly steel construction of Monoloc will last for years. The kit includes a performance street sprung disc, a heavy - duty pressure plate, an alignment tool, a pilot bearing, and a release bearing. Note that it doesn't include a flywheel, but the ACT Streetlite Flywheel can be bought separately.
Using this ACT clutch kit is straightforward. First, if you have a 2007 - 2009 Subaru Legacy GT Spec B, make sure to install the STI flywheel before fitting the clutch kit. The kit comes with an alignment tool which you should use to properly align the clutch disc during installation. Once installed, you'll enjoy a smooth driving experience with a light to moderate pedal feel. For daily street use, this clutch kit is very reliable. If you're planning to take it to the race track, it can handle up to 522 ft/lbs of torque. When it comes to maintenance, keep an eye on the clutch performance. If you notice any strange noises or a change in the pedal feel, it might be time for an inspection. The heavy - duty pressure plates and performance street discs are built to last, but regular checks are still a good idea. The Monoloc is made of hardened chrome - moly steel, so it should serve you well for years, but just like other parts, it's worth inspecting periodically. Remember, this kit doesn't come with a flywheel, so if you need one, you can purchase the ACT Streetlite Flywheel separately.
