The ACT Mod-Twin 225 HD Rigid Street Kit is engineered for high-performance street and street/strip applications on Subaru WRX STI models from 2015 to 2018. This clutch kit combines a lightweight, rigid design with premium materials to deliver exceptional durability, precise shifting, and a smooth pedal feel. Featuring a forged aluminum pressure plate cover and a no-nonsense Mono-Drive hub, this assembly ensures quick engagement and reliable power transfer for high-powered AWD vehicles. The kit's clutch discs incorporate ceramic friction plates with high-quality organic friction materials, providing a stable friction coefficient, excellent heat capacity, and extended clutch life. These components are designed to withstand high heat and torque loads, making them ideal for aggressive street driving or moderate track use.
The Monoloc collar and patented components allow for full rebuildability, while the exclusive four-stage heat treating process on each diaphragm spring enhances durability and performance. The assembly includes a CNC-machined, dynamically balanced flywheel, pressure plate cover, diaphragm spring, friction plates, rigid Mono-Drive hub, floater, release bearing, alignment tool, and pilot bearing if needed. The kit’s modular design simplifies installation and service, allowing most components to be ordered separately. Its strategic engineering minimizes transmission gear noise, ensuring a smooth driving experience even under demanding conditions.
Designed to deliver maximum torque capacity of up to 700 ft-lbs, the ACT Mod-Twin 225 HD Rigid Street Kit is tested to meet rigorous standards and is SFI certified. Its high heat tolerance and robust construction make it suitable for enthusiasts seeking a reliable, long-lasting clutch that balances performance with street comfort. Backed by ACT’s industry-leading one-year warranty, this clutch kit offers excellent value and peace of mind for drivers pushing the limits of their Subaru WRX STI's drivetrain.
Features:
- High torque capacity: Supports up to 700 ft-lbs for demanding applications
- Premium friction materials: Ceramic and organic friction plates for stable, long-lasting performance
- Rigid Mono-Drive hub: Ensures quick, positive shifts with enhanced durability
- Exclusive four-stage heat treating: Improves spring resilience and longevity
- Rebuildable design: Most components can be ordered separately for easy maintenance
- Lightweight yet rigid construction: Promotes smooth engagement and quick shifts
- Includes CNC-machined, balanced flywheel: Ensures smooth operation and easy installation
- SFI certified: Meets industry safety standards for high-performance use
- Strategic engineering: Minimizes gear noise and enhances drivability
Fitment:
2004 Subaru Impreza WRX STI
2005 Subaru Impreza WRX STI
2006 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI
2007 Subaru Impreza WRX STI Limited
2008 Subaru Impreza WRX STI
2009 Subaru Impreza WRX STI
2010 Subaru Impreza WRX STI
2010 Subaru Impreza WRX STI Special Edition
2011 Subaru Impreza WRX STI
2011 Subaru Impreza WRX STI Limited
2012 Subaru Impreza WRX STI
2012 Subaru Impreza WRX STI Limited
2013 Subaru Impreza WRX STI
2013 Subaru Impreza WRX STI Limited
2014 Subaru Impreza WRX STI
2014 Subaru Impreza WRX STI Limited
2015 Subaru WRX STI Base
2015 Subaru WRX STI Launch Edition
2015 Subaru WRX STI Limited
2016 Subaru WRX STI Base
2016 Subaru WRX STI Limited
2016 Subaru WRX STI Series.HyperBlue
2017 Subaru WRX STI Base
2017 Subaru WRX STI Limited
2018 Subaru WRX STI Base
2018 Subaru WRX STI Limited
2018 Subaru WRX STI Type RA
2019 Subaru WRX STI Base
2019 Subaru WRX STI Limited
2019 Subaru WRX STI S209
2020 Subaru WRX STI Base
2020 Subaru WRX STI Limited
2021 Subaru WRX STI Base
2021 Subaru WRX STI Limited
