The ACT Mod-Twin 225 XT Rigid Street Clutch Kit is engineered for high-performance Subaru WRX STI models from 2015 to 2018. Designed to deliver a smooth pedal feel, quick shifting, and robust durability, this kit combines advanced materials and innovative features to support high-powered all-wheel-drive applications. The kit's core components include a CNC-machined and dynamically balanced flywheel, a pressure plate cover, a diaphragm spring, ceramic friction plates, a rigid Mono-Drive hub, and a patented Monoloc Collar, ensuring consistent engagement and long-lasting performance.
The kit's friction system utilizes steel-backed organic friction plates with exclusive four-stage heat treatment, providing a stable friction coefficient, high heat capacity, and extended clutch life. This results in reliable torque transfer and enduring operational stability under demanding driving conditions. The Mono-Drive chrome-moly hub is heat-treated for added strength and durability, extending the life of the input shaft with a continuous spline design. With a lightweight, rigid design, this clutch allows for quicker shifts and trouble-free servicing, making it suitable for street or street/strip use.
ACT’s Mod-Twin 225 XT Rigid Street Clutch Kit is fully rebuildable, with most components available separately for repairs or upgrades. Each clutch is individually clamp load tested, balanced, and SFI certified to ensure maximum performance and safety. The kit’s strategic engineering achieves a balance between soft, progressive engagement and high torque capacity, making it an ideal choice for enthusiasts seeking durability, performance, and reliability in demanding driving scenarios.
Backed by a one-year warranty, the ACT Mod-Twin 225 XT Rigid Street Kit is a trusted solution for drivers needing a high-performance clutch that can handle the stresses of spirited driving while maintaining smooth operation and long-term dependability. Whether for daily driving or moderate street/strip applications, this clutch kit offers a strategic blend of features designed to enhance your Subaru WRX STI’s performance and longevity.
Features:
- Blends easy pedal effort with smooth, positive engagement and quick shifting for high-powered AWDs
- Exclusive four-stage heat treatment on diaphragm spring for durability
- Steel-backed organic friction plates with high-quality friction materials for stable performance
- Mono-Drive chrome-moly hub heat-treated for strength and extended input shaft life
- Lightweight, rigid design enables quicker shifts and trouble-free service
- Includes CNC-machined, dynamically balanced flywheel, pressure plate, ceramic friction plates, and more
- Fully rebuildable clutch kit with most components available separately
- Clamp load tested, balanced, and SFI certified for performance and safety
- Designed for street or street/strip applications with high heat tolerance and long life
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