Perrin Master Cylinder Support Brace Subaru WRX / STI 2002-2007

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The Perrin master cylinder support brace provides the much needed support for the master cylinder and brake booster that the stock setup just can't provide. When you place force against the pedal the brake booster and master cylinder acctually bend away from the you. The sheet metal that these parts are bolted to just can't prevent movement and over time can fatigue to the point of failure. Perrin designers devised a simple plan to fix this problem- an easy to install and inexpensive brace cut from 6061 aluminum that bolts to the driver side shock tower. With the Perrin brace you are placing tension on the master cylinder opposite the brake pedal, completely eliminating this pendulum like motion. The firmed up pedal feel without any risk of damage to the fire wall makes this brace such a popular upgrade.

Fits 02+ wrx and 04+ sti

Part Number: PSP-BRK-400


2 customers have reviewed this product.

Buy it. BUY IT NOW!

, Mar 29, 2013
Hands down best mod I have done to my car under $100. Totaly got rid of the flex in the fire wall giving the brakes a much more consistent and firmer feel. This thing is so good it should have come stock!
Buy it, you won't regret it trust me!


, Dec 6, 2012
Have it in for a month now and only mod on brakes at this time. Easy to install about 20 min tops and more solid pedal feel...less vibration when braking

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You're reviewing: Perrin Master Cylinder Support Brace Subaru WRX / STI 2002-2007