ACT Mod-Twin 225 XT Sprung Race Clutch Kit 2004-2020 STI

This is ACT's new Mod Twin 225 XT Sprung Race Clutch Kit. This particular clutch kit is ideal for high-horsepower AWD vehicles that experience aggressive launches and high-performance driving conditions. This clutch combines twice the ceramic friction surfaces with an ultra-durable mono-drive sprung 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 puck-style friction plates with high-quality ceramic friction materials that deliver a high 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: 1120 ft/lbs Torque capacity over OE: 214% Sprung race-disc type Ceramic disc material Recommended use: Drag racing, road racing, or rally racing FEEL: Predictable aggressive 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: The MOD Twin clutches are fully rebuildable and most components can be ordered separately