This ACT clutch kit, specifically the SB5 - HDSS model, is a top - choice for Subaru WRX (2006 - 2017) and Legacy GT (2005 - 2012) owners. Note that starting mid - 2018MY production with VIN J*806877, Subaru incorporated 240mm clutch components, and this ACT kit isn't compatible with the revised OEM parts. The kit features a sprung performance street clutch disc and a well - loved heavy - duty pressure plate. You'll enjoy light to moderate pedal effort, smooth positive engagement, and it can handle up to 420ft/lbs of torque on your WRX, making it great for both street and race use. The ACT heavy - duty pressure plates use an exclusive diaphragm design. They go through a four - stage heat - treating process, increasing clamp load, reducing deflection, and maximizing clutch life. The precision cover stampings provide rigidity and consistency. The performance street discs have premium organic materials with high copper content for better heat transfer and steel - backed lining for more strength and durability. With reduced marcel, they allow for faster shift action. This kit comes with a performance street sprung disc, heavy - duty pressure plate, alignment tool, release bearing, and pilot bearing. It's 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability, with a feel of light to moderate pedal effort, smooth engagement, and OE to mild gear rattle.
Using this ACT clutch kit is straightforward. First, make sure your vehicle is a 2006 - 2017 Subaru WRX or 2005 - 2012 Legacy GT, and not a 2018 model with the revised OEM components. When installing, use the alignment tool included in the kit to ensure proper alignment. The release bearing and pilot bearing should be installed according to the standard procedures. When driving, you'll notice a light to moderate pedal effort, which makes it easy to operate. The smooth positive engagement means you can shift gears smoothly. For street use, it provides a comfortable driving experience, and for racing, it can handle high - torque situations up to 420ft/lbs. As for maintenance, keep an eye on the clutch performance. If you notice any unusual noise or a change in pedal feel, it might be time to check the components. Since the pressure plates and discs are designed for durability, they should last a long time with normal use. But remember, if you frequently push the vehicle to its limits during racing, you may need to inspect them more often.
