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 Gravity, Stage 1 and Stage 2 clutch applications. Made of 4140 forged steel and are a one-piece design. All flywheels are SFI certified. Not all applications have the ST and STU versions available. Flywheel weights vary from 8lbs to 18lbs depending on application.
This Part Fits:
| Year | Make | Model | Submodel | 
| 2008 | Subaru | Forester | Sports 2.5 XT | 
| 2005 | Subaru | Forester | XT | 
| 2006-2008 | Subaru | Forester | XT Limited | 
| 2005 | Subaru | Forester | XT Premium | 
| 2006-2014 | Subaru | Impreza | WRX | 
| 2006-2007,2010-2014 | Subaru | Impreza | WRX Limited | 
| 2009-2014 | Subaru | Impreza | WRX Premium | 
| 2006-2007 | Subaru | Impreza | WRX TR | 
| 2005-2006 | Subaru | Legacy | GT | 
| 2005,2007-2009 | Subaru | Legacy | GT Limited | 
| 2006 | Subaru | Legacy | GT spec.B |