Perrin Master Cylinder Brace Red 2008-2014 STI / 2007-2009 Legacy / 2007-2009 Outback XT | Firewall Reinforcement | Brake Pedal Response Upgrade
Overview
The Perrin Master Cylinder Brace is a precision-engineered solution designed to eliminate flex at the firewall of select Subaru models, including the 2008-2014 WRX STI, 2007-2009 Legacy, and 2007-2009 Outback XT. By bracing the master cylinder against the solid shock tower, this brace delivers a noticeably firmer and more consistent brake pedal feel. Whether you’re easing into a stop or pushing hard on the brakes, the improved pedal feedback enhances driver confidence and control.
Constructed from CNC machined 6061 aluminum combined with CNC formed steel, the Perrin brace uses a unique dual-material design to maximize stiffness while minimizing weight. Unlike welded steel assemblies, this two-piece construction triangulates mounting points across three different surfaces around the shock tower, significantly reducing flex beyond traditional single-plane braces. The anodized black aluminum top with a laser-engraved Perrin logo and the powder-coated steel section in your choice of red, black, or blue provide both functional and aesthetic upgrades to your engine bay.
For Subaru enthusiasts focused on improving brake feel and pedal response, this master cylinder brace offers a direct, bolt-on upgrade that complements the platform’s dynamic capabilities. The enhanced rigidity at the firewall translates to more precise brake modulation, which is especially beneficial during spirited driving or track use. This part is a practical and visually appealing addition that aligns with the performance-oriented mindset of Subaru owners.
Features & Specifications
This Perrin Master Cylinder Brace is engineered for Subaru WRX STI, Legacy, and Outback XT models and features a dual-material construction combining CNC machined 6061 aluminum and CNC formed steel. Constructed for maximum stiffness and minimal weight, it delivers improved brake pedal feedback for Subaru enthusiasts seeking enhanced braking control and engine bay aesthetics.
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Brand: Perrin Performance
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Product: Master Cylinder Brace Red
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Part Number: PSP-BRK-401RD
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Fitment: 2008-2014 Subaru WRX STI / 2007-2009 Subaru Legacy / 2007-2009 Subaru Outback XT
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Material: CNC Machined 6061 Aluminum & CNC Formed Steel
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Finish: Anodized Black Aluminum, Wrinkled Powder Coat Steel (Red)
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Construction: CNC Machined and Formed, Triangulated Mounting Design
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Origin: Made in USA
Key Benefits
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Performance: Eliminates firewall flex for firmer, more consistent brake pedal feel
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Durability: High-quality CNC machined aluminum and steel ensure long-lasting rigidity
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Fitment: Triangulated mounting points provide superior support compared to single-plane braces
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Aesthetics: Anodized and powder-coated finishes with laser-engraved branding enhance engine bay appearance
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Quality: Precision CNC manufacturing guarantees exact fit and finish for Subaru platforms
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Value: Combines functional brake feel improvement with a clean, OEM+ look
What's Included
- 1× Perrin Master Cylinder Brace
- 1× Perrin Master Cylinder Bracket
- 1× M12 Socket Set Cup
- 1× M12 Jam Nut
- 6× M6 Fender Washer
- 5× M6 Button Head Socket Cap Screw
- 1× M6 Socket Set Screw
- 2× M6 Stainless Steel Nut
- 1× M8 Nut
- 1× M8 Fender Washer
- 2× M8 Flat Washer
- 1× M8 Socket Cap Screw
- 4× M6 Flat Washer
- 3× M6 Button Head Socket Cap Screw
- 4× Zip Ties
- 1× M6 Short Arm Hex Key
- 1× M4 Short Arm Hex Key
- 1× Bracket for Cable Tie-Down
- Installation Instructions
Installation & Compatibility
The Perrin Master Cylinder Brace is a direct bolt-on upgrade designed for straightforward installation with basic hand tools, including the provided hex keys. While the installation is generally DIY-friendly for those with moderate mechanical experience, careful attention to mounting points and torque specifications is essential to ensure proper fit and function. No welding or permanent modifications are required. This brace is compatible with the specified Subaru WRX STI, Legacy, and Outback XT model years; verify your vehicle’s year and trim before purchase to ensure fitment. No tuning or additional modifications are necessary after installation.
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Professional Installation: Recommended for those unfamiliar with brake system components
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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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