This ACT SB5 - HDG6 heavy - duty clutch kit is a top - notch choice for Subaru enthusiasts. It fits a wide range of Subaru models, including the 2006 - 2017 WRX, 2005 - 2012 Legacy GT and Legacy GT Spec B, 2005 - 2009 Outback XT, and 2006 - 2008 Forester XT. Note that starting mid - 2018MY production with VIN J*806877, Subaru used 240mm clutch components, and this kit isn't compatible with these revised OEM parts. The kit features a sprung, 6 - pad race clutch disc paired with a popular heavy - duty pressure plate. You'll experience a light to moderate pedal feel, aggressive engagement, and it can handle up to 535 ft/lbs of torque. It's ideal for high - horsepower street cars or race use. The ACT heavy - duty pressure plates use an exclusive diaphragm design. They increase clamp load, reduce deflection, and maximize clutch life. The diaphragms go through a four - stage heat - treating process for excellent performance. The precision cover stampings provide rigidity and consistency. The 6 - pad, spring - centered race disc dampens torsional vibrations and resists failure under tough conditions. The spring retainers support the springs, reduce stress, and increase strength. With this disc, engagement is harsher but shifting is faster, and it's great for larger clutch sizes to absorb heat. This kit offers light to moderate pedal effort, aggressive engagement with OE to mild gear rattle. It's 100% clamp load tested and dynamically computer - balanced for smooth high - RPM reliability. What's included? A 6 - pad sprung race disc, a heavy - duty pressure plate, an alignment tool, and a pilot bearing.
Using this ACT clutch kit is straightforward. First, make sure your Subaru model is within the specified fitment range. Check the VIN to ensure compatibility. If you have a vehicle produced after mid - 2018MY with VIN J*806877, this kit won't work. When installing, use the included alignment tool and pilot bearing to ensure correct positioning. Once installed, you'll notice a light to moderate pedal feel and an aggressive engagement. It's designed for high - horsepower street driving or race use. During normal use, expect a bit of OE to mild gear rattle, which is normal for this type of clutch. For maintenance, keep an eye on the clutch performance. If you notice any changes in pedal feel or shifting, it might be a sign that the clutch needs inspection. Also, since the 6 - pad disc is great at absorbing heat, it's well - suited for tough driving conditions. But don't push it beyond its 535 ft/lbs torque capacity. If you do, it could lead to premature wear or failure. Regularly check the pressure plate and disc for signs of wear and tear. If you see excessive wear, it's time to replace the parts.
