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

by ACT
Save 22% Save 22%
Original price $2,300.00
Original price $2,300.00 - Original price $2,300.00
Original price $2,300.00
Current price $1,794.00
$1,794.00 - $1,794.00
Current price $1,794.00
  Lease to own   Pay as low as   $/week

This is ACT's new Mod Twin 225 XT Rigid Race Clutch Kit. This particular clutch kit is ideal for high-horsepower AWD vehicles that experience aggressive launches, rapid shifting, and high-performance driving conditions.  This clutch combines twice the ceramic friction surfaces with a no-nonsense rigid Mono-Drive hub in a completely modular design. Each diaphragm spring endures an exclusive four-stage heat-treating process that provides a consistent light-pedal feel. The puck-style friction plates with high-quality ceramic friction materials deliver high friction coefficient, superior heat capacity, and longer clutch life. Additionally, the friction plates uniformly transfer torque to a Mono-Drive chrome-moly hub which is heat-treated for strength and durability extending input shaft life with one continuous spline. Ultimately, this package delivers a lightweight and rigid design will provide quicker shits with trouble-free service. 


  • Torque capacity: 1120 ft/lbs
  • Torque capacity over OE: 214%
  • Rigid race-disc type
  • Ceramic disc material
  • Recommended use: Drag racing, road racing, or rally racing


  • Predictable aggressive engagement
  • Light pedal effort
  • Quick shifting
  • Possible start-off judder with mild to moderate transmission gear noise


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


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


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


  • The MOD Twin clutches are fully rebuildable and most components can be ordered separately