Clutch Masters FX500 6 Puck Single Disc Clutch Kit 02-05 WRX / 91-94 Legacy | 200-400% Increased Holding Capacity | Race-Only Clutch Kit
Overview
The Clutch Masters FX500 6 Puck Single Disc Clutch Kit is a high-performance race clutch designed specifically for the 2002-2005 Subaru WRX and 1991-1994 Subaru Legacy platforms. Engineered for motorsport and extreme driving conditions, this clutch kit delivers a substantial increase in holding capacity—between 200% and 400% over stock—making it ideal for race applications where maximum power transfer and durability under heat are critical. This kit is not intended for street use due to its aggressive engagement characteristics and heavy pedal effort.
At the core of the FX500 system is the Power Plus II Pressure Plate paired with a solid hub 6-puck ceramic button disc. This design focuses on rapid heat dissipation and exceptional clamping force, achieved through precision heat-treated diaphragms and a ductile iron casting pressure plate. The ceramic friction material offers superior durability and holding power but requires careful consideration as it produces clutch chatter and a harsh engagement not suitable for daily driving. Clutch Masters’ engineering approach prioritizes race-ready performance, reliability, and consistency under extreme conditions.
For Subaru enthusiasts pushing their WRX or Legacy to the limits on the track, the FX500 clutch kit provides a direct and immediate engagement that translates to improved throttle response and power delivery. Its solid hub design eliminates the flex found in sprung hub clutches, ensuring every bit of engine torque is transferred efficiently. While the pedal effort is significantly heavier, this trade-off is common in race clutches and is a worthwhile compromise for drivers seeking uncompromising performance and durability in demanding motorsport environments.
Features & Specifications
This Clutch Masters FX500 6 Puck Single Disc Clutch Kit is engineered for the 2002-2005 WRX and 1991-1994 Legacy platforms and features a solid hub 6-puck ceramic button disc for rapid heat dissipation and high clamping force. Constructed from premium ceramic friction material and ductile iron, it delivers exceptional holding capacity and durability for Subaru enthusiasts seeking race-level performance and reliability.
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Brand: Clutch Masters
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Product: FX500 6 Puck Single Disc Clutch Kit
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Part Number: 15016-HDB6
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Fitment: 2002-2005 WRX / 1991-1994 Legacy
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Material: Ceramic Friction Disc, Ductile Iron Pressure Plate
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Finish: Natural metal finish with friction material
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Construction: Solid hub, heat-treated diaphragms, precision casting
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Origin: Made in USA
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Power Gains: 200-400% Increased Holding Capacity
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Tuning Required: Recommended for race applications
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Engagement: Aggressive, rapid engagement with clutch chatter
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SFI Certification: Spec 1.2 for NHRA, NDRA, IDRC, IHRA, SCCA, NASA competition
Key Benefits
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Performance: Significantly increased holding capacity supports high horsepower and torque builds without slippage.
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Durability: Ceramic friction material and heat-treated components provide excellent heat resistance and longevity under race conditions.
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Fitment: Custom-built for precise fit on 2002-2005 WRX and 1991-1994 Legacy models, ensuring reliable installation and operation.
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Engagement: Instant clutch engagement improves throttle response and power transfer for competitive driving.
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Quality: Manufactured with premium materials and precision engineering to meet rigorous motorsport standards.
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Compliance: SFI certified for safety and competition use in multiple sanctioning bodies.
What's Included
- 1× Clutch Masters FX500 6 Puck Ceramic Button Disc
- 1× Power Plus II Pressure Plate
- 1× OEM or better Release Bearing
- 1× Pilot Bearing (when applicable)
- 1× Alignment Tool
- Installation Instructions
- Decals
Installation & Compatibility
Installation of the FX500 clutch kit is moderately complex and generally recommended for experienced DIYers or professional mechanics familiar with Subaru drivetrains. The kit includes all necessary components for a complete clutch replacement, but special tools such as a clutch alignment tool are required and included. Due to the solid hub ceramic disc design, expect significantly heavier pedal effort and clutch chatter, which may require adjustment in driving style. This clutch is race-only and not recommended for street use or stock vehicles. Verify fitment carefully for your specific year and trim of WRX or Legacy before purchase.
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Professional Installation: Recommended
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Modifications Required: None beyond standard clutch replacement procedures
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Verify Compatibility: Confirm fitment for your specific year and trim level
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