The ACT SB13-HDSS combines ACT’s Heavy Duty pressure plate with its most popular Performance Street disc, engineered for street and light race applications. The pressure plate’s exclusive diaphragm design provides increased clamp load, reduced deflection, and extended clutch life, with each diaphragm spring undergoing a four-stage heat treatment for consistent performance.

The Performance Street disc features premium organic friction material with high copper content for improved heat transfer, plus a steel-backed lining for enhanced strength and durability. Reduced marcel allows for faster, smoother shifts, complementing the heavy-duty pressure plate.

Quick Specs

• Torque Capacity: 259 ft-lbs (59% over OE)
• Disc Material: Organic
• Disc Diameter: 9 in / 228 mm
• Input Shaft Diameter: 1 in
• Pressure Plate Type: Heavy Duty
• Flywheel Type: Streetlite
• Product Weight: 15.1 lbs

Performance Characteristics

• Feel: Light to moderate pedal effort, smooth positive engagement, OE to mild gear rattle
• Life: Extended friction life via ACT’s precision diaphragm design
• Quality: Premium materials, carefully engineered and balanced for high heat tolerance and reduced fade
• Recommended Use: Street and light race applications
• ACT Difference: 100% clamp-load tested and dynamically balanced for smooth, high-RPM reliability