PERRIN PSP-BRK-403NY Master Cylinder Brace Neon Yellow for 15-21 Subaru WRX/STI

Vehicle Fitment

• 2015-2021 Subaru WRX (all trims; 2.0L Turbo; AWD)
• 2015-2021 Subaru WRX STI (2.5L Turbo; AWD)
• 2013-2017 Subaru Crosstrek (2.0L/2.5L; AWD)
• 2014-2018 Subaru Forester XT (2.0L Turbo; AWD)

Features

• CNC-machined 6061-T6 billet aluminum body
• Neon yellow anodized finish for corrosion resistance
• Bridges firewall to shock tower for solid pedal response
• Includes adjustable tension screw for preload
• Reduces firewall flex under heavy braking
• Stainless steel mounting hardware
• Intermediate install level (~2 hrs)
• 5-year PERRIN warranty

Specifications

• Material: 6061-T6 aluminum
• Finish: neon yellow anodize
• Weight: ~1.5 lb (0.68 kg)
• Mounts: firewall to shock tower (master cylinder brace)
• Adjustability: preload screw included

Included Components

• 1x Master cylinder brace (neon yellow)
• 3x M6 socket cap screws
• 1x M8 socket cap screw
• 1x M8 fender washer
• 1x M12 socket cup screw
• 1x M12 jam nut
• 1x M6 hex key
• 1x M5 hex key
• 1x Instruction manual & warranty card

Product Description

The PERRIN PSP-BRK-403NY Master Cylinder Brace stiffens the connection between the brake master cylinder and shock tower, eliminating firewall flex and giving you a firmer, more consistent brake pedal feel. This neon-yellow, CNC-machined 6061-T6 aluminum brace is designed for a precision fit on 2015-2021 WRX, STI, 2013-2017 Crosstrek, and 2014-2018 Forester XT models.

Installation is a straightforward, intermediate-level process taking around 2 hours. The brace includes an adjustable preload screw and full stainless hardware for added reliability. Ideal for street, track, and spirited driving, it enhances brake responsiveness and confidence. Fitment is confirmed through 2021; earlier Crosstrek and Forester XT use shared chassis configurations. No lift/drop height applies since it mounts to existing factory locations.