Competition Clutch 1994-2004 Subaru Impreza 14lb Steel FlywheelCompetition 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. This Part Fits: Year Make