This ACT 6-puck sprung hub race disc (6228218) is the perfect fit for your Subaru WRX, Legacy GT, or Outback XT. It's crafted from high-quality ceramic friction materials, offering a more aggressive driving experience. The engagement is harsher but results in lightning - fast shifts. The heavy - duty torsional dampening springs are stronger than standard ones, carefully sized and rated for optimal performance. This 6 - pad, spring - centered disc is great for larger clutch sizes, as it can absorb more heat and provides a smoother engagement. With an aggressive feel, it allows for quick shifts and has mild to moderate gear rattle. It's highly recommended for high - horsepower street or race use. Compared to typical organic materials, it has high burst strength and can hold 28% more torque. ACT's race discs are not suitable for daily driving due to their harsh engagement. They're best used in professional race settings. As for replacement, measure the disc thickness. New discs are usually 0.312 - 0.315 inches (7.93 - 8.00 mm) thick, and fully worn ones are 0.275 inches (7.00 mm) or less. Use a micrometer for accurate measurement. Also, note that starting mid - 2018MY production (VIN J*806877), Subaru's 240mm clutch components are not compatible with ACT discs.
How to use: Install this ACT 6 - puck sprung hub race disc in your Subaru WRX, Legacy GT, or Outback XT according to the vehicle's service manual. This disc is ideal for high - performance driving, so if you're on a race track or looking for a high - horsepower street drive, you're good to go. Just be aware that the engagement is harsh, so you'll feel a more aggressive start. Note: Don't use this disc for daily driving. The harsh engagement can cause judder and uncomfortable noise when taking off from a stop. Also, starting mid - 2018MY production, Subaru's 240mm clutch components won't work with this ACT disc. Maintenance: Regularly check the thickness of the disc using a micrometer. Replace it when it reaches the worn - out thickness level. If the lining rivets on either side of the disc touch the flywheel or pressure plate face, replace the disc right away. This ensures your clutch and drive line components work properly and last longer.
