Clutch Masters Aluminum Flywheel Honda Civic Si 2006-2011 | FW-037-AL

The Clutch Masters FW-037-AL Lightweight Aluminum Flywheel is designed for Honda and Acura enthusiasts seeking maximum engine responsiveness and quicker rev characteristics for high-performance street and race applications. Manufactured from high-quality 6061-T6 billet aluminum, this flywheel significantly reduces rotational mass compared to factory flywheels, helping the engine accelerate and decelerate faster.

Built for performance-focused K-series applications, the FW-037-AL is a popular upgrade for Civic Si, RSX Type-S, and K-swapped vehicles running aftermarket clutch systems and higher RPM setups.

Key Features & Benefits

• Lightweight 6061-T6 billet aluminum construction
• Faster throttle response and quicker engine revving
• Replaceable steel friction surface for serviceability
• CNC-machined and precision balanced
• SFI-certified for motorsports use
• Helps reduce rotational drivetrain loss
• Ideal for naturally aspirated and forced induction builds
• Compatible with OEM and many aftermarket clutch setups

Performance Advantages

Compared to heavier factory flywheels, the FW-037-AL helps:

• Improve engine acceleration response
• Reduce turbo lag in boosted applications
• Increase rev-matching responsiveness
• Improve mid-range acceleration feel
• Enhance track and autocross performance

Because of the reduced mass, aluminum flywheels are especially popular in:

• Road racing
• Autocross
• Drag racing
• High-RPM naturally aspirated builds

Construction & Engineering

The FW-037-AL is precision manufactured using:

• CNC-machined billet aluminum body
• Replaceable steel friction insert
• Precision balancing for smooth high-RPM operation
• SFI-certified safety standards

The replaceable friction surface allows servicing without replacing the entire flywheel assembly.