The SB5-HDSS kit combines ACT’s Heavy Duty pressure plate with their Performance Street disc for dependable street and light race use. The diaphragm-style pressure plate increases clamp load, reduces deflection, and maximizes clutch life. The premium organic disc with high copper content and steel-backed lining ensures superior heat transfer, durability, and burst strength. Reduced marcel design allows faster shifts, providing smooth, reliable engagement.

Specs:

• Torque Capacity: 420 ft/lbs (32% over OE)

• Disc Material: Organic

• Disc Diameter: 9 in / 228 mm

• Input Shaft Diameter: 1 in

• Pressure Plate Type: Heavy Duty

• Product Weight: 14.5 lbs

Performance Characteristics

• Feel: Light to moderate pedal effort, smooth positive engagement, OE to mild gear rattle

• Life: Extended friction life with improved release mechanism longevity

• Quality: Precisely assembled, accurately balanced, with premium organic friction materials for heat tolerance and reduced fade

• Recommended Use: Street and race use

• ACT Difference: 100% clamp load tested, dynamically balanced for smooth high RPM reliability

Note: 2005-2009 Legacy GT must use a 2006-2007 WRX flywheel for proper fitment.