Clutch Masters Clutch Master Cylinders Hydraulics 02-14 WRX / 04-14 STI | Adjustable Bore .700" | Hydraulic Clutch Upgrade
Overview
The Clutch Masters Clutch Master Cylinder kit is a precision-engineered hydraulic upgrade designed specifically for Subaru WRX and WRX STI models from 2002 to 2014. This billet aluminum master cylinder replaces the OEM unit to provide a crisper, more responsive clutch pedal feel and eliminates the factory clutch delay valve. It’s ideal for enthusiasts upgrading their clutch system for more aggressive driving or those experiencing wear and leaks in their original master cylinder. This kit ensures your hydraulic system matches the demands of performance driving while maintaining compatibility with OEM slave cylinders.
Built with adjustability in mind, the Clutch Masters master cylinder allows fine-tuning of pedal engagement and throw through its adjustable housing position and push rod clevis. The design philosophy focuses on delivering a direct and immediate clutch engagement by removing the one-way regulating valve that slows fluid return in the factory setup. This approach enhances shift response, especially during quick 1-2 gear changes, making it a favorite among Subaru drivers seeking precision and control without sacrificing reliability.
For Subaru owners, this hydraulic upgrade translates to a more connected driving experience with reduced clutch lag and improved modulation. The billet aluminum construction ensures durability and resistance to wear, while the included remote reservoir and stainless steel lines provide a complete, plug-and-play solution. Whether on the street or track, this master cylinder upgrade supports the performance potential of your Subaru WRX or STI clutch system.
Features & Specifications
This Clutch Masters Clutch Master Cylinder is engineered for Subaru WRX and WRX STI models (2002-2014) and features a .700" bore size for enhanced hydraulic response. Constructed from billet 6061 aluminum, it delivers precise clutch engagement and durability for Subaru enthusiasts seeking improved pedal feel and shift speed.
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Brand: Clutch Masters
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Product: Clutch Master Cylinders Hydraulics 02-14 WRX / 04-14 STI
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Part Number: MC15017-R
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Fitment: Subaru WRX 2002-2014, Subaru WRX STI 2004-2014
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Material: 6061 Billet Aluminum
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Finish: Natural Aluminum
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Construction: CNC Machined
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Origin: Not Specified
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Bore Size: .700 inches
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Hydraulic Line: -3AN Stainless Steel
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Includes: Remote mount reservoir, billet adapter, push rod with adjustable clevis
Key Benefits
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Performance: Eliminates clutch delay valve for immediate clutch engagement and faster shifts
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Adjustability: Adjustable master cylinder position and push rod clevis allow precise pedal travel tuning
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Durability: CNC-machined billet aluminum construction resists wear and corrosion under aggressive use
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Fitment: Designed as a direct replacement for 2002-2014 WRX and 2004-2014 WRX STI models, compatible with OEM slave cylinders
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Complete Kit: Includes all necessary hardware, remote reservoir, and stainless steel lines for plug-and-play installation
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Driving Experience: Provides a crisper, more responsive clutch pedal feel ideal for spirited driving and track use
What's Included
- 1× Clutch Masters 6061 Billet Aluminum Master Cylinder (.700" Bore)
- 1× -3AN Stainless Steel Hydraulic Line
- 1× Billet Aluminum Master Cylinder Adapter and Jam Nut
- 1× Billet Aluminum Reservoir and Cap
- 1× Remote Mount Reservoir Bracket
- Billet Barb Fittings for Reservoir and Master Cylinder Housing
- Rubber Hose to Connect Reservoir to Master Cylinder
- Extended and Adjustable Push Rod with Billet Clevis
- 2× Banjo Fittings with Crush Washers
- Jam Nut Tool
Installation & Compatibility
Installation of the Clutch Masters master cylinder is generally straightforward for those with moderate mechanical experience, as it is designed as a direct bolt-on replacement for the specified Subaru WRX and STI models. The kit includes all necessary hardware and fittings for a complete hydraulic system upgrade. However, due to the adjustable nature of the master cylinder’s position and push rod length, it is highly recommended to carefully measure and set pedal throw to avoid overthrowing the clutch diaphragm. Adjustments may require minor modifications such as installing a clutch pedal stop or repositioning components to ensure proper engagement and prevent damage.
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Professional Installation: Recommended for optimal adjustment and safety
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Modifications Required: Possible pedal stop installation or push rod adjustment
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Verify Compatibility: Confirm fitment for your specific year and trim level; does not fit 2015-2021 WRX STI models
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