This ACT 6 - Pad Rigid Race Disc (6228018) is a top - notch choice for your Subaru. It fits 2002 - 2018 Subaru WRX, 2005 - 2012 Subaru Legacy GT, 2005 - 2009 Subaru Outback XT, and 2004 - 2008 Subaru Forester XT. However, starting mid - 2018MY production with VIN J*806877, Subaru used 240mm clutch components, and this disc isn't compatible with the revised OEM parts. Crafted from high - quality ceramic friction materials, it offers a more aggressive engagement and faster shifting. The top - grade rivets hold the part securely, with a design and materials chosen for maximum strength. It's great for larger clutch sizes to absorb heat and provide smoother engagement. The disc gives an aggressive feel, quick shifts with increased gear rattle. It's ideal for high - horsepower street or race use. It has high burst strength and can hold 28% more torque than typical organic materials. There's a limited retail warranty, and you can follow ACT's general installation instructions. Remember, this race disc is too aggressive for daily driving. It can cause judder and noise when taking off. Use an organic disc on the street for a smoother ride. When it comes to replacement, most new discs are 0.312 - 0.315 inches (7.93 - 8.00mm) thick and should be replaced when they reach 0.275 inches (7.00mm) or less. Some applications have different thicknesses. Measure with a micrometer, and replace the disc if the lining rivets touch the flywheel or pressure plate face.
Using this ACT 6 - Pad Rigid Race Disc: First, make sure your Subaru model is one of the compatible ones (2002 - 2018 WRX, 2005 - 2012 Legacy GT, 2005 - 2009 Outback XT, 2004 - 2008 Forester XT). Check the VIN to ensure compatibility with the disc, as there are some changes in 2018MY production. When installing, follow ACT's general installation instructions. This disc is meant for high - horsepower street or race use. Don't use it for daily driving as it can cause an uncomfortable experience. If you notice judder or strange noises when taking off, it's a sign that it's not suitable for normal street driving. For maintenance, regularly check the thickness of the disc. Use a micrometer to measure. Replace the disc when it reaches the specified minimum thickness. Also, keep an eye on the lining rivets. If they touch the flywheel or pressure plate face, replace the disc right away. Always remember, using a disc with an improper thickness can lead to poor performance.
