ACT Xtreme Clutch Kits are high quality products guaranteeing superior functionality and efficiency! They afford a clamp load increase of 50% to 100% with moderate-to-stiff pedal feel, and many of these units are SFI-certified.

• Spline Size (Inches): 7/8
• Disc Type: Race Disc
• Spline Count: 20
• Product Weight (lbs.): 10.7
• Torque Capacity (ft./lbs.): 530
• Moderate to heavy pedal effort, aggressive engagement, increased gear rattle
• Moderate friction life, extended by ACT's exclusive diaphragm design, rigid design may increase spline wear
• Carefully engineered, precisely assembled, accurately balanced, uses select ceramic friction materials for high heat tolerance and maximum performance
• Recommended for race use only
• 100% clamp load tested and dynamically computer balanced for smooth high RPM reliability

MB1-XTR4 kit features an Xtreme pressure plate for the most demanding driver. ACT Xtreme pressure plates use exclusive diaphragm design to increase clamp load, reduce deflection and maximize clutch life. All diaphragms endure a four-stage, heat-treating process for unparalleled performance. ACT pressure plates have precision cover stampings to provide rigidity and consistency. ACT's 4-pad rigid race discs are made with high quality, ceramic friction materials. The chrome-moly hub is heat-treated for strength and durability. The lightweight, rigid design allows for quicker shifts and smooth, trouble-free service. With the 4-pad rigid race disc, engagement is harsher, but shifting is faster. The 4-pad rigid race disc is well-suited for the smaller disc sizes in smaller engines.

Since 1994, Advanced Clutch Technology has specialized in performance clutches and flywheels. All products are made from the highest quality materials and then necessarily tested to ensure they perform to the customers' expectations.