Clutch Masters Lightweight Steel Flywheel | 2004-2019 Subaru STI (FW-721-SF)

04-19 STI Lightweight Steel Flywheel by Clutch Masters

Clutch Masters Flywheels are designed and tested to ensure the safety and quality of every flywheel. Years of R&D has given us the knowledge and firsthand experience to choose wisely the best material to manufacture flywheels that will surpass your expectations.

Depending on the application, the majority of Clutch Masters flywheels are made from 6061 T6 Billet Aluminum, 1045 or 4140 Billet Steel. Clutch Masters Flywheels are SFI Certified meeting performance standards for the automotive and motorsport industry.

Features

• Light-weight for improved performance and Quicker Rev’s.
• Reduces turbo “lag” in turbo-charged engines.
• Increased supercharger efficiency due to less drag on the crank.
• Improved mid-range torque in naturally aspirated engines.
• CNC Machined and balanced.
• SFI Certified.

Please Note: Replacing your OEM flywheel with a light weight flywheel may cause gear noise or a vibration that may not be suitable for everyone. The lighter the flywheel the more gear noise will be produced. Depending on the application Clutch Masters usually recommends Steel flywheels rather than Aluminum flywheels since Aluminum flywheels will cause more gear noise.

Applications

• 2004 - 2019 Subaru STI

What's In The Box?

• 1 - Lightweight Steel Flywheel

Warranty

• Manufacturer Standard Warranty