ACT Mod-Twin 225 HD Sprung Street Clutch Kit 2004-2021 STI

This is ACT's new Mod Twin 225 HD Sprung Street Clutch Kit is ideal for high-horsepower AWD vehicles and unites uncompromised pedal feel, durability, and engagement quality with high-torque capacity. This clutch combines twice the organic friction surfaces with an ultra-durable spring-center mono-drive hub assembly in a completely modular design. Each diaphragm spring endures an exclusive four-stage heat-treating process that provides a consistent light-pedal feel. Other features include steel-backed friction plates with high-quality organic friction materials that deliver stable friction coefficient, superior heat capacity, and longer clutch life. The friction plates uniformly transfer torque to a Mono-Drive sprung hub assembly which extends input shaft life and reduces driveline shock from torsional vibration. 

PERFORMANCE:

• Torque capacity: 700 ft/lbs
• Torque capacity over OE: 97%
• Sprung street-disc type
• Organic disc material
• Recommended use: Street or Street/Strip

FEEL:

• Soft progressive engagement
• Light pedal effort
• Smooth shifting
• Possible start-off judder with OE to mild transmission gear noise

CONSTRUCTION:

• Forged aluminum cover
• Mono-drive hub
• Exclusive diaphragm
• Premium friction materials with hardened wear points 

QUALITY:

• Delivers maximum performance
• Delivers high-heat tolerances by combining robust design, strategic features, choice materials, and close tolerances

INCLUDES:

• CNC-machined and dynamically balanced flywheel
• Pressure plate cover
• Diaphragm spring
• Face
• Puck-style ceramic friction plates
• Sprung mono-drive hub assembly 
• Floater
• Patented Monoloc Collar
• Release bearing
• Alignment tool 
• Pilot bearing (if needed)

NOTE: