This ACT SB11 - HDG4 clutch kit is a great choice for high - horsepower street or race Subarus. It fits 2006 - 2024 Subaru WRX, 2005 - 2012 Subaru Legacy GT, 2006 - 2009 Subaru Legacy GT Spec B, 2005 - 2009 Subaru Outback XT, and 2006 - 2008 Subaru Forester XT. It's a conversion kit that replaces the original 230mm clutch and comes with an ACT flywheel. The kit features a 4 - puck sprung race disc paired with a popular heavy - duty pressure plate. You'll experience light to moderate pedal effort, an aggressive engagement, and it can handle up to 574 ft/lbs of torque. The heavy - duty pressure plate uses an exclusive diaphragm design to increase clamp load, reduce deflection, and extend clutch life. The 4 - pad spring - centered race disc dampens vibrations for quieter operation and resists failure. With it, shifting is faster, though engagement is harsher. Included in the kit are a Streetlite Flywheel, 4 Puck Sprung Race Disc, Heavy Duty Pressure Plate, Alignment Tool, and Pilot Bearing. It's 100% clamp load tested and dynamically computer - balanced for smooth high - RPM reliability.
Using this clutch and flywheel kit is straightforward. First, make sure your Subaru model is one of the compatible ones (2006 - 2024 WRX, 2005 - 2012 Legacy GT, etc.). Since it's a conversion kit, replace the original 230mm clutch with the parts in the kit, using the included ACT flywheel. When you start using the vehicle, expect a light to moderate pedal effort and an aggressive engagement. You might hear a bit of gear rattle, similar to an OE or mild one. This kit is great for high - horsepower street or race use, but keep in mind that the engagement is harsher, which means you'll shift faster. For maintenance, regularly check the pressure plate and the race disc for any signs of wear. Since the pressure plate has been treated through a four - stage heat - treating process, it should last a long time, but still, keep an eye on it. Also, make sure the spring retainers are in good condition as they support the springs and increase reliability. And remember, this kit has been 100% clamp load tested and dynamically computer - balanced, so it should provide smooth high - RPM performance.
