ACT Releases SFI-Approved Mod-Twin Clutch (Push-Type) 225 for Subaru WRX

LANCASTER, CALIFORNIA, JANUARY 23rd, 2024 — Advanced Clutch Technology (ACT) releases a full range of 225 Mod-Twin Clutch Kits (Push-Type) for the Subaru WRX.T1S-S01=


  • The factory single 240mm has limitations for handling high power.
  • The pressure plate design of the OEM is inefficient.
  • 225mm Mod-Twin push-type with Mono Drive modular hub system.
  • Forged aluminum cover with Streetlite flywheel.
  • Light pedal for T1, slightly firmer for T2.
  • Made to handle higher power levels beyond what the OE transmission can manage.
  • Almost identical internals to the current pull-type STI version.

Ideal for Street: Mod-Twin 225 Street Kits offer excellent feel and drivability while quietly capable of handling up to 800 FT-LB of torque - perfectly suited for daily use.

Destined to Win: Mod-Twin 225 HD and XT Race kits endure the punishment of competitive racing, be it drag, road, or rally racing. The Mod-Twin delivers excellent clutch life and resilience at torque levels as high as 910 FT-LB.

Less Is More: A single Mono-Drive hub by ACT increases toughness and spline life while providing either a robust spring damper or a rigid coupling to the transmission.

Modular: Optional components for the Mod-Twin can be combined in any one of 8 configurations. The Mod-Twin offers two different clamp loads, alternate friction plates, and a choice of either a sprung or rigid Mono-Drive hub.

Simple Installation: Uses the factory push-type design for maximum simplicity. The kit includes a Chromoly XACT Streetlite Flywheel, clutch hardware, an improved release bearing, and an alignment tool.

To view a PDF of the press release and specifications sheet, please click here.