Clutch Masters Aluminum Flywheel 06-09 Legacy GT Spec B / 04-21 STI | Lightweight Design | Performance Flywheel
Overview
The Clutch Masters Aluminum Flywheel is a precision-engineered upgrade designed for Subaru enthusiasts seeking to reduce rotational mass and improve throttle response. Specifically crafted for select Legacy GT Spec B and WRX/STI models from the early 2000s through 2021, this flywheel replaces the heavier stock unit with a lightweight aluminum construction. It is ideal for drivers looking to enhance clutch engagement and overall drivability without sacrificing reliability.
Clutch Masters is known for its focus on durable, high-performance clutch components tailored to Subaru platforms. This aluminum flywheel reflects their commitment to quality and engineering excellence, offering a balance of weight reduction and strength. The design optimizes engine response by lowering inertia, which translates to quicker revving and smoother power delivery, especially beneficial for spirited street driving and track use.
For Subaru owners, this flywheel upgrade means a more connected driving experience. The reduced flywheel mass allows the engine to accelerate and decelerate faster, improving throttle control and shifting precision. Compatible with a range of Subaru models including the Legacy GT Spec B, WRX, Forester, and Baja, it supports enhanced clutch performance while maintaining OEM-level fitment and durability.
Features & Specifications
This Clutch Masters Aluminum Flywheel is engineered for 2004-2005 Baja, 2004-2005 Forester, 2002-2005 WRX, and 1991-1994 Legacy platforms and features a lightweight aluminum construction. Crafted to reduce rotational mass, it delivers improved throttle response and clutch engagement for Subaru enthusiasts seeking enhanced drivability and performance.
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Brand: Clutch Masters
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Product: Aluminum Flywheel 06-09 Legacy GT Spec B / 04-21 STI
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Part Number: FW-721-AL
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Fitment: 2004-2005 Baja / 2004-2005 Forester / 2002-2005 WRX / 1991-1994 Legacy
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Material: Aluminum
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Finish: Natural aluminum
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Construction: Precision machined
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Origin: Not specified
Key Benefits
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Performance: Reduced rotational mass improves engine throttle response and acceleration feel.
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Durability: High-quality aluminum construction balances lightweight design with long-lasting strength.
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Fitment: Direct replacement for specified Subaru models ensuring OEM-level compatibility.
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Engagement: Enhances clutch feel and reduces drivetrain inertia for smoother shifting.
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Value: Offers a cost-effective upgrade for enthusiasts seeking noticeable driving improvements.
What's Included
- 1× Clutch Masters Aluminum Flywheel 06-09 Legacy GT Spec B / 04-21 STI
Installation & Compatibility
Installation of this aluminum flywheel requires moderate mechanical skill and proper tools, including a torque wrench and clutch alignment tools. Professional installation is recommended to ensure correct fitment and clutch system operation. This flywheel is a direct bolt-on for the listed Subaru models but verify your specific year and trim compatibility before purchase. No modifications are typically required, but clutch and drivetrain components should be inspected during installation. No tuning is necessary for this mechanical upgrade.
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Professional Installation: Recommended
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific year and trim level
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