**Fitment Information**: This ACT street sprung replacement disc fits 2002 - 2017 Subaru WRX, 2005 - 2012 Subaru Legacy GT, 2006 - 2009 Legacy GT Spec B, and 2005 - 2009 Subaru Outback XT. **Features**: It's a top - selling performance street disc. Crafted with premium organic materials high in copper, it offers excellent heat transfer. Quicker shifting and smooth engagement are its hallmarks. With a reduced marcel, it enables faster shift action, complementing ACT pressure plates. The spring - centered assemblies use bushings and cone springs like factory clutch discs, creating frictional dampening. This not only extends clutch life but also cuts down on noise. You'll enjoy quiet operation along with increased strength and reliability. **Feel**: Smooth engagement, quicker shifts, with a bit of gear rattle similar to OE or mild levels. **Recommended Use**: Ideal for both street and race use. **ACT Difference**: Steel - backed linings boost burst strength, and the reduced marcel speeds up shifting. **FAQ**: Can an ACT Race puck - style disc be used for daily driving? ACT's race discs are aggressive and give a no - nonsense performance response, but the engagement is harsh. Starting from a stop can cause judder and noise. They're for professional race settings only, not the street. ACT suggests using an organic disc on the street for smoother engagement and long - lasting performance. When to replace a clutch disc? Most new discs are 0.312 - 0.315 inches (7.93 - 8.00mm) thick, and fully worn is 0.275 inches (7.00mm) or less. Some Audi and BMW applications start at 0.332 - 0.335 inches (8.43 - 8.50mm) and should be replaced below 0.295 inches (7.50mm). Measure with a micrometer. For organic street discs, compress the engagement cushion before measuring. If the lining rivets touch the flywheel or pressure plate, replace the disc. Using a disc outside the pressure plate's working range can lead to poor results. **Fitment Notes**: In 2002, use an ACT flywheel or 03 - 05 factory flywheel (not included). In 2004 and 2005 (230mm), use an ACT flywheel or 2003 - 2005 WRX flywheel. Starting mid - 2018MY production (VIN J*806877), Subaru's 240mm clutch components are not compatible with ACT discs. For 2005 - 2009 Legacy GT and 2006 - 2008 Forester XT, use a 2006 - 2014 WRX flywheel for a proper fit.
Using your ACT street sprung replacement clutch disc is straightforward. First, make sure to choose the right flywheel according to the fitment notes for your specific Subaru model and year. When installing, follow the manufacturer's instructions carefully. During daily driving, you'll notice smoother engagement and quicker shifts, which makes your driving experience more enjoyable. For maintenance, keep an eye on the thickness of the clutch disc. Use a micrometer to measure it regularly. As mentioned, when the disc reaches the minimum thickness for your vehicle, it's time to replace it. If you hear any strange noises or feel excessive judder during engagement, it could be a sign that the disc is wearing out or something is wrong. Also, avoid using an ACT Race puck - style disc on the street as it's designed for professional race settings. Remember, using a disc that doesn't match the pressure plate's working range can cause problems, so always double - check the specifications. With proper use and maintenance, your ACT clutch disc will serve you well for a long time.
