Your brake pedal is connected to the thin sheet metal firewall which flexes as you apply the brakes. The firewall is not stiff enough to deal with the constant and repeated forces while applying the brakes. The PERRIN Master Cylinder Brace creates a bridge between the firewall, master cylinder, and shock tower, significantly reducing flex in the firewall while braking.
The PERRIN Master Cylinder Brace significantly reduces flex at the firewall, so you get solid brake pedal feel with every application of the brakes. This is very noticeable while under heavy braking and even slowing for a stop sign. The difference can immediately be felt after installation.
When possible we try to design Master Cylinder Braces in one piece to improve rigidity. The PERRIN Master Cylinder Brace for the 2002-2005 WRX, 2015 WRX / STI, and FR-S / BRZ / 86 are CNC machined from a large piece of 6061-T6 billet aluminum for extreme stiffness. With stainless steel hardware and an anodized finish, the PERRIN Master Cylinder Brace will look great and last the life of the car, even in the harshest conditions.
The PERRIN Master Cylinder Brace for 2008-2014 WRX / STI is constructed of CNC Machined 6061 aluminum, and CNC formed Steel. This combination of different materials are used to add extra support compared to other systems. Making this from two CNC parts instead of a series of welded steel pieces, keeps the part extremely stiff as well as very light.
The PERRIN Master Cylinder Brace is design to attach strategically to multiple points on the shock tower. This helps reduce flex in the brake master cylider by creating a solid connection between it and the chassis. To further aid in stiffening or tightening up this connection, included is an adjustable screw that allows tension to be preloaded on the master cylinder.
Anodized black with a vivid PERRIN logo, the PERRIN Master Cylinder Brace for 2002-2005 WRX, 2015-2017 WRX / STI, and FR-S / BRZ / 86 are guaranteed to continue looking great while being used.
PSP-BRK-400 = 2002-2005 WRX / 2004-2005 STI
PSP-BRK-403 = 2015-2019 WRX / STI
PSP-BRK-405BK = FR-S / BRZ / 86
2002-2005 WRX - Yes
2004-2005 STI - Yes
2015-2019 STI - Yes
2015-2019 WRX - Yes
2013-2017 Crosstrek - Yes
2018 Crosstrek - No
2014-2018 Forester - Yes
2013-2016 BRZ - Yes
2013-2016 FR-S - Yes
2017 86 - Yes
2017 BRZ - Yes
PERRIN Performance warrants to the original purchaser that all PERRIN products will be free from defects in material and workmanship within a sixty (60) month period from the date of purchase. *Some exclusions apply
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