ACT Xtreme Race Sprung 6-Pad Clutch Kit for 2004-2021 Subaru WRX STI & Legacy GT spec.B (SB10-XTG6)

Fits 2004-2021 Subaru WRX STI and 2007-2009 Subaru Legacy GT spec.B.

The ACT Xtreme Race Sprung 6-Pad Clutch Kit (SB10-XTG6) is engineered for high-performance applications where rapid shifting and high heat capacity are critical. This kit combines the ACT Xtreme pressure plate with a 6-pad spring-centered race disc, providing a significant increase in clamp load and torque capacity over factory components.

The Xtreme pressure plate features a proprietary diaphragm design that undergoes a rigorous four-stage heat-treating process to minimize deflection and maximize longevity. Precision-stamped covers provide the rigidity needed for consistent engagement under load. Included in this kit is the Monoloc collar, a one-piece chrome-moly steel upgrade that replaces the traditional multi-piece wedge collar in Subaru pull-type clutches, ensuring secure bearing alignment regardless of RPM or driving style.

The 6-pad race disc utilizes a spring-centered construction to dampen torsional vibrations and reduce stress on the drivetrain. While engagement is more aggressive than a street disc, the ceramic friction material and 6-pad design handle significantly more heat, making it ideal for track use and high-output street builds.

• Manufacturer Part Number: SB10-XTG6
• Pressure Plate Series: Xtreme (XT) with heat-treated diaphragm
• Disc Style: 6-Pad Race Sprung (G6)
• Material: Chrome-moly steel Monoloc wedge collar and ceramic friction pads
• Engagement: Harsher engagement with faster shift response
• Included Hardware: Monoloc collar, alignment tool, and release bearing