Competition Clutch Lightweight Steel Flywheels (ST suffix) are recommended for naturally aspirated and/or street-driven applications. This flywheel preserves low-end torque and driveability. Well-suited for Stage 1 and Stage 2 clutch applications. Made of 4140 forged steel and are a one-piece design. Not all applications have the ST and STU versions available. Flywheel weights vary from 8lbs to 18lbs depending on application.
WarrantyThis Part Fits:
| Year | Make | Model | Submodel | 
| 2004-2014 | Subaru | Impreza | WRX STI | 
| 2007,2011-2014 | Subaru | Impreza | WRX STI Limited | 
| 2010 | Subaru | Impreza | WRX STI Special Edition | 
| 2015-2016 | Subaru | WRX STI | Base | 
| 2015 | Subaru | WRX STI | Launch Edition | 
| 2015-2016 | Subaru | WRX STI | Limited | 
| 2016 | Subaru | WRX STI | Series.HyperBlue |