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ACT engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACT lineup with fast shipping and expert fitment support — order with confidence.
The ACT Mod-Twin HD Sprung Race Kit is engineered for the most demanding AWD performance vehicles, including the Subaru WRX STI. This kit is designed to handle aggressive launches and facilitate smoother shifting in high-horsepower applications by combining dual ceramic friction surfaces with an ultra-durable Mono-Drive sprung hub assembly. Its completely modular design ensures a perfect fit and exceptional performance.
Each diaphragm spring in this kit undergoes ACT's exclusive four-stage heat-treating process, ensuring a consistent and light pedal feel, even under extreme conditions. The puck-style friction plates utilize high-quality ceramic materials, providing a high friction coefficient, superior heat capacity, and extended clutch life. These plates efficiently transfer torque to the Mono-Drive sprung hub assembly, which is designed to protect the input shaft and reduce driveline shock caused by torsional vibrations. This kit boasts an impressive torque capacity of 895 ft-lbs.
This ACT Mod-Twin HD Sprung Race Kit is the ultimate solution for Subaru WRX STI owners seeking maximum performance and reliability on the track or in competition. Its robust construction and advanced features ensure it can withstand the rigors of high-performance driving. Upgrade your Subaru with this top-tier clutch kit from ACT, available at GGCRACING.
| Years | Make | Model | Trim |
|---|---|---|---|
| 2004-2014 | Subaru | Impreza | WRX STI |
| 2007 | Subaru | Impreza | WRX STI Limited |
| 2010 | Subaru | Impreza | WRX STI Special Edition |
| 2011-2014 | Subaru | Impreza | WRX STI Limited |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2015-2021 | Subaru | WRX STI | Base |
| 2016 | Subaru | WRX STI | Series.HyperBlue |
| 2018 | Subaru | WRX STI | Type RA |
| 2019 | Subaru | WRX STI | S209 |
Other popular ACT products customers consider together:
ACT engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full ACT lineup with fast shipping and expert fitment support — order with confidence.
The ACT Mod-Twin HD Sprung Race Kit is engineered for the most demanding AWD performance vehicles, including the Subaru WRX STI. This kit is designed to handle aggressive launches and facilitate smoother shifting in high-horsepower applications by combining dual ceramic friction surfaces with an ultra-durable Mono-Drive sprung hub assembly. Its completely modular design ensures a perfect fit and exceptional performance.
Each diaphragm spring in this kit undergoes ACT's exclusive four-stage heat-treating process, ensuring a consistent and light pedal feel, even under extreme conditions. The puck-style friction plates utilize high-quality ceramic materials, providing a high friction coefficient, superior heat capacity, and extended clutch life. These plates efficiently transfer torque to the Mono-Drive sprung hub assembly, which is designed to protect the input shaft and reduce driveline shock caused by torsional vibrations. This kit boasts an impressive torque capacity of 895 ft-lbs.
This ACT Mod-Twin HD Sprung Race Kit is the ultimate solution for Subaru WRX STI owners seeking maximum performance and reliability on the track or in competition. Its robust construction and advanced features ensure it can withstand the rigors of high-performance driving. Upgrade your Subaru with this top-tier clutch kit from ACT, available at GGCRACING.
| Years | Make | Model | Trim |
|---|---|---|---|
| 2004-2014 | Subaru | Impreza | WRX STI |
| 2007 | Subaru | Impreza | WRX STI Limited |
| 2010 | Subaru | Impreza | WRX STI Special Edition |
| 2011-2014 | Subaru | Impreza | WRX STI Limited |
| 2015 | Subaru | WRX STI | Launch Edition |
| 2015-2021 | Subaru | WRX STI | Base |
| 2016 | Subaru | WRX STI | Series.HyperBlue |
| 2018 | Subaru | WRX STI | Type RA |
| 2019 | Subaru | WRX STI | S209 |
Other popular ACT products customers consider together: