ACT Extreme Race Rigid 4 Pad Clutch Kit w/Flywheel 2006-2024 WRX / 2005-2012 Legacy GT / 2006-2008 Forester XT

The SB11-XTR4 ACT Extreme Race Rigid 4 Pad Clutch Kit is engineered for high-performance race applications where quick, precise shifts are essential. It features an Xtreme pressure plate with ACT’s exclusive diaphragm design for increased clamp load, reduced deflection, and extended clutch life. The 4-pad rigid race disc is built with high-quality ceramic friction materials and a heat-treated chrome-moly hub for strength and durability. Its lightweight, rigid design ensures fast, consistent engagement, making it ideal for smaller engines and compact disc sizes.

Specs

• Torque Capacity: 681 ft/lbs (121% over OE)
• Disc Material: Ceramic
• Clutch Disc Diameter: 9.4 in / 240 mm
• Input Shaft Diameter: 1 in
• Pressure Plate Type: Xtreme
• Flywheel Type: Streetlite
• Product Weight: 27.1 lbs

Performance Characteristics

• Feel: Moderate to heavy pedal effort, aggressive engagement, increased gear rattle
• Life: Moderate friction life, extended by ACT’s diaphragm design; rigid design may increase spline wear
• Quality: Precisely engineered, balanced, and assembled using premium ceramic friction materials for high heat tolerance and performance
• Recommended Use: Race use only
• ACT Difference: 100% clamp load tested and dynamically balanced for smooth high RPM reliability