Clutch Masters 725 Series Street Twin Disc Clutch Kit 18-21 WRX | Twin Disc Performance | High-Strength Street Clutch Kit
Overview
The Clutch Masters 725 Series Street Twin Disc Clutch Kit is engineered specifically for the 2018-2021 Subaru WRX, delivering a high-performance clutch solution that balances track-capable clamping force with street drivability. This twin disc setup features a 7.25" diameter and includes an aluminum flywheel, making it ideal for enthusiasts seeking to handle increased horsepower and torque without sacrificing pedal feel. Designed for drivers who demand durability and consistent engagement, this clutch kit is well-suited for spirited street driving and occasional track use.
Built on decades of drag racing expertise, Clutch Masters has refined the FX725 twin disc system with a focus on strength, minimal rotational mass, and smooth operation. The billet aluminum cover is Type 3 hard anodized for exceptional tensile strength, reducing flex to just .003" compared to the .030" typical of cast covers. This rigidity ensures that all clutch actuation force is efficiently applied to engagement and disengagement, enhancing driver confidence and clutch responsiveness.
Subaru WRX owners will appreciate the Quick Release (QR) Pressure Plate system unique to Clutch Masters, which uses spring-loaded bolts to evenly distribute pressure and reduce clutch noise and chatter by up to 50%. The aluminum flywheel is machined from 6061-T6 billet aluminum, anodized for durability, and meets SFI 1.2 specifications for competition use. This combination results in a clutch kit that can handle serious power upgrades while maintaining manageable pedal effort and reliable street manners.
Features & Specifications
This Clutch Masters 725 Series Street Twin Disc Clutch Kit is engineered for 2018-2021 Subaru WRX models and features a 7.25" twin disc design with an included aluminum flywheel. Constructed from billet aluminum and high-performance friction materials, it delivers superior clamping force and reduced rotational mass for Subaru enthusiasts seeking enhanced power handling and consistent clutch engagement.
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Brand: Clutch Masters
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Product: 725 Series Street Twin Disc Clutch Kit
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Part Number: 15020-TD7S-A
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Fitment: 2018-2021 Subaru WRX
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Material: Billet Aluminum (cover and flywheel), Ceramic and Fiber Tuff friction discs
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Finish: Type 3 Hard Anodized (cover and flywheel)
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Construction: CNC Machined Billet Aluminum Cover, Machined Flywheel
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Origin: Not specified
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Clutch Diameter: 7.25" (184mm)
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Disc Configuration: Twin Disc (1 ceramic rigid disc + 1 fiber tuff rigid disc for Street and Race stage)
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Flywheel Type: Aluminum with replaceable insert
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QR System: Quick Release Pressure Plate with spring-loaded bolts
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Application Focus: Drag racing and high-performance street use
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Pedal Effort: Moderate for twin disc setup
Key Benefits
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Performance: Handles high horsepower and torque with superior clamping force for aggressive driving and racing scenarios.
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Durability: Billet aluminum cover and anodized flywheel resist flex and wear, ensuring long-lasting reliability under stress.
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Engagement: Quick Release Pressure Plate reduces clutch chatter and noise, providing smooth and consistent pedal feel.
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Fitment: Designed specifically for 2018-2021 WRX models with smaller bell housings, ensuring precise compatibility.
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Weight Savings: Lightweight aluminum flywheel reduces rotational mass, improving throttle response and acceleration.
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Street Usability: Improved friction materials allow occasional street driving without sacrificing track performance.
What's Included
- 1× Clutch Masters 725 Series Street Twin Disc Clutch Kit
- 1× Aluminum Flywheel with replaceable insert
- Mounting hardware (as required for installation)
- Installation instructions
Installation & Compatibility
Installation of the Clutch Masters 725 Series Twin Disc Clutch Kit is moderately complex and generally recommended for experienced DIYers or professional mechanics due to the precision required for clutch alignment and flywheel installation. No special tools beyond standard clutch service equipment are typically necessary. This kit is designed exclusively for 2018-2021 Subaru WRX models with smaller bell housings and may require minor adjustments to clutch hydraulics or pedal setup. Tuning is not required but recommended if the vehicle has supporting power modifications to optimize drivability and clutch engagement.
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Professional Installation: Recommended
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Modifications Required: None beyond standard clutch installation procedures
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Verify Compatibility: Confirm fitment for your specific WRX year and transmission type
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