"Can feel a huge difference. Install isn’t terrible if you wrench on cars often. Others seem to struggle a little but still worth the install! Whether you are barely applying brakes or smashing them you can really feel this mod! 10/10"
Improve pedal feel and braking capabilities!

- Most Bracket Mounting Points Available! (5 strut tower mounting points)
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Indestructible 12L14 CNC Laser cut construction and black powder coating
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Pedal feel dramatically improved(Similar feeling to SS Braided brake lines)
- Large diameter pressure cup (Will not mar and damage the master cylinder like other braces)
- Only brace to not require any cutting or modification of stock components.
- Simple Allen key locking mechanism
Pressing Subaru brakes leaves a lot to be desired, especially when every inch counts in a race or when you are depending on them to save your life! The dramatic firewall flex is the source of this performance flaw in Subaru's that we came to solve. Skipping the "standard bracket" that others have been making we engineered the most simple to install and best performing master cylinder brace on the market. The GrimmSpeed Master Cylinder Brace takes a beating and comes back for more! Crafted from hardcore CNC laser cut 12L14 with multi-point welded fabrication. It is the Abrams Tank of master cylinder braces touting 4 factory mounting points, the most available from any brace. Powdercoated black this brace will outlive your car and win you some style points to boot. Most importantly this brace kit will kill your wimpy pedal feel and give you the immediate and tight response that your performance car deserves and needs when you hit the track or rally. This brace will give you the confidence similar to that of SS braided brake lines with precision stopping. Not to mention street driving just got a whole lot more fun!
The reinvention of heavy duty, it's what you can expect from GrimmSpeed
This is an example of the actual effect the GrimmSpeed brace has on a flexing master cylinder.

FITMENT:
- 2008-14 Subaru WRX
- 2008-14 Subaru STI
- 2009-13 Subaru Forester
- 2007-09 Subaru Legacy (equipped with VDC)
Only compatible with left-hand drive models.
INSTALLATION:
Overall rating: 4.7222223 / 5 from 18 reviews.
AI Generated Review Summary
Summary topics
Review topics: ["fit","instructions","quality","install","feel","difference","improvement","brakes","mod","pedal","quality of the product","grimmspeed","bolts"].
Review highlights
Reviews
2011 Forester
"Installed on 2011 Forester. Easier than what the video shows because there are less hoses. The 3 holes for the short bolts were not previously used so I had to clean out the threads with a tap before the bolts would go in. I was unable to reuse the bracket that supports the battery cable to the starter. I don't see any difference during mild braking but panic stops show a big improvement."
"Very sturdy brace! A little tricky to get in, but manageable. If you have an intercooler, take it off before installing this!"
"Great"
Works great
"Just installed one on my 09 FXT. Install was pretty straightforward. Took me around 45 mins to install. I haven't been able to drive around much with it but there's a noticeable difference in pedal feel now. Great product and great company!"
Works Great!
"Installing as a novice it was a bit of a pain it took me about an hour total but works as it should and helped with the pedal feel on my 2012 WRX."
bitter sweet
"Reduces Flex and give tighter feels on breaks and improved more. However, I did not feel much of drastic change compared to when I installed SS break line. Install... Steps are very simple and easy level.... BUT for 2011 WRX, it was very painful for the installation. Fuel line was covering the screw area and very tight room to work on. Had to yank (Stress out) bit of fuel line to get an access which I had concern with, but they are ok. Overall I love it, and I love the looks in the bay as well."
Huge difference in brake feel.
"Even with just day to day driving, the pedal had a squishy feeling. It was the biggest issue I had with the car. I installed this brace and it's a night and day improvement in pedal feel. Wrestling around fuel lines was more difficult than expected but not impossible. Installation instructions are very descriptive and straight forward."
Worth it.
"Put this on my 2011 Forester and felt the difference right away. The brace gives the pedal a much firmer feel as you apply the brakes. No more stepping on a sponge. Install was a bit tricky and definitely get the M6 tap that’s recommended. Take your time putting it in and you’ll really enjoy it - 100% worth it."
2008 STI Master Cylinder Brace
"Perfect fit, less firewall flex from pressing the brakes, and brakes feel tighter and more refined. I love Grimmspeed products."