Xtreme FSU002C Chromoly Performance Flywheel for Subaru

Improve throttle response and drivetrain performance with the Xtreme FSU002C Chrome-Moly Flywheel, developed for selected Subaru performance applications using a 5-speed transmission.

Designed by Xtreme Clutch for performance road, track and motorsport use, the FSU002C combines high-strength chromoly construction with reduced rotating mass to provide an excellent upgrade when replacing or upgrading the clutch and flywheel assembly.

At approximately 6.09kg, the FSU002C is designed to reduce rotational inertia compared with heavier conventional flywheels. Reduced rotating mass can allow the engine to change RPM more quickly, providing a sharper and more responsive feel during acceleration and gear changes.

For Subaru owners upgrading their Impreza WRX, Forester Turbo or compatible Legacy EJ20 drivetrain, the Xtreme chromoly flywheel is an excellent choice for a performance clutch installation.

Why Upgrade to an Xtreme Chromoly Flywheel?

The flywheel plays an important role in transferring power between the engine and gearbox. A heavy factory-style flywheel generally provides smooth operation but can reduce how quickly the engine changes speed.

A performance chromoly flywheel reduces unnecessary rotating mass while retaining the strength required for demanding performance applications.

The Xtreme FSU002C flywheel is particularly suited to drivers looking for:

• Faster engine response
• Sharper throttle response
• Improved performance during gear changes
• Stronger performance drivetrain components
• Improved compatibility with performance clutch upgrades
• A high-quality flywheel for tuned Subaru applications

High-Strength Chromoly Construction

Rather than using conventional cast materials, the Xtreme FSU002C is manufactured from high-strength chromoly steel.

Chromoly offers an excellent combination of strength, durability and weight, making it particularly suitable for high-performance drivetrain components.

This makes the flywheel suitable for vehicles used for:

• Fast-road driving
• Track days
• Motorsport
• Modified street cars
• Performance Subaru builds
• Competition applications

6.09kg Performance Flywheel

The FSU002C has an approximate listed weight of 6.09kg.

Reducing rotating mass allows the engine to accelerate and decelerate more quickly, helping create a more responsive drivetrain.

Drivers may notice:

• Quicker engine revving
• Improved throttle response
• Faster RPM changes
• Sharper heel-and-toe downshifts
• More responsive acceleration
• More direct performance driving characteristics

For modified Subaru EJ20 turbo applications, these characteristics make a lightweight chromoly flywheel a popular upgrade when fitting a performance clutch.

Designed for Subaru 5-Speed Applications

The Xtreme FSU002C is designed for selected Subaru applications using a 5-speed gearbox, including applications within the Subaru Impreza WRX, Forester Turbo and Legacy/Liberty ranges.

Common applications include selected:

Subaru Impreza WRX

• GC8
• GF8
• GDA
• GGA
• EJ20 Turbo
• 5-speed manual transmission

Subaru Forester Turbo

• SF5
• SG5
• EJ20 Turbo
• Selected 5-speed applications

Subaru Legacy / Liberty

• Selected EJ20 turbo applications

Vehicle compatibility can vary according to model year, gearbox, clutch configuration and engine specification. Always confirm compatibility using the vehicle registration, VIN, engine code and gearbox before ordering.

Ideal for Performance Clutch Upgrades

When upgrading to a higher-capacity performance clutch, installing a suitable performance flywheel at the same time can help create a stronger and more responsive drivetrain package.

The Xtreme FSU002C is suitable for pairing with compatible Xtreme Clutch kits and other correctly specified performance clutch systems.

This makes it an excellent upgrade for Subaru vehicles that have received modifications such as:

• ECU remapping
• Turbo upgrades
• Performance exhaust systems
• Intake upgrades
• Increased boost pressure
• Engine modifications
• Track preparation
• Motorsport conversion

Technical Specifications

Brand: Xtreme Clutch
Product Type: Performance Flywheel
Manufacturer Part Number: FSU002C
SKU: FSU002C
Material: Chromoly Steel
Flywheel Type: Single Mass
Approx. Weight: 6.09kg
Flywheel Step: Flat / 0 mm
Ring Gear Teeth: 124
Flywheel Mounting Hole Diameter: Approx. 10.4mm
Transmission: Selected Subaru 5-Speed Manual Applications
Primary Engine Family: Subaru EJ20 Turbo
Application: Performance Road / Fast Road / Track / Motorsport

Benefits of the Xtreme FSU002C Flywheel

Reduced Rotating Mass

The reduced flywheel mass helps the engine change RPM faster than a heavier conventional flywheel.

Improved Throttle Response

A lighter rotating assembly can make throttle inputs feel sharper and more immediate.

Strong Chromoly Construction

Chromoly steel provides excellent strength for demanding performance applications.

Performance-Focused Design

Designed for enthusiast vehicles where drivetrain response and durability are priorities.

Excellent Clutch Upgrade Companion

Ideal when replacing the original clutch with an upgraded Xtreme performance clutch system.

Suitable For

The Xtreme FSU002C is ideal for:

• Subaru Impreza WRX owners
• Subaru EJ20 turbo builds
• Subaru Forester turbo performance builds
• Performance road cars
• Fast-road Subaru builds
• Track-day vehicles
• Motorsport vehicles
• Modified turbocharged Subaru engines
• Performance clutch conversions

Important Fitment Information

Please check compatibility carefully before ordering.

Subaru models may use different clutch and flywheel configurations depending on:

• Production year
• Engine code
• Gearbox type
• 5-speed or 6-speed transmission
• Clutch diameter
• Turbo specification
• Market specification

FSU002C is principally intended for selected 5-speed Subaru applications and should not automatically be assumed to fit 6-speed STI applications.

If you are unsure, contact Performance Cars Parts UK with your vehicle registration, VIN, engine code and transmission details before purchasing.

Why Buy from Performance Cars Parts UK?

At Performance Cars Parts UK, we supply premium performance, tuning and motorsport components for Japanese, European and performance vehicles.

Shop Xtreme Clutch products together with performance clutches, lightweight flywheels, suspension, braking, engine and drivetrain upgrades for your Subaru.

Order your Xtreme FSU002C Chromoly Flywheel from PerformanceCarsParts.co.uk and upgrade your Subaru drivetrain with a performance-focused flywheel designed for demanding road and track applications.