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GrimmSpeed Master Cylinder Brace (Part Number: )
GrimmSpeed Master Cylinder Brace (Part Number: )
GrimmSpeed Master Cylinder Brace (Part Number: )
GrimmSpeed Master Cylinder Brace (Part Number: )
GrimmSpeed Master Cylinder Brace (Part Number: )
GrimmSpeed Master Cylinder Brace (Part Number: )
GrimmSpeed Master Cylinder Brace (Part Number: )
GrimmSpeed Master Cylinder Brace (Part Number: )
GrimmSpeed Master Cylinder Brace
Scion FR-S 2013-2016 / Subaru BRZ 2013+ / Toyota 86 2017+
Read 5 Reviews | Q&A
Part # 091038

In stock! Ships same day

Features & Product Details

This is the Grimmspeed Master Cylinder Brace that has been designed to reinforce as well as reduce the flex between the brake booster, and the firewall. Under braking, your firewall will flex, which over time can cause damage to the integrity of the firewall and decrease the performance in your braking. This is especially crucial for those of you who participate in high-performance driving conditions where heavy and aggressive braking is natural.

Grimmspeed engineered a solution which is their Master Cylinder Brace which has been designed with the most bracket mounting points available when compared to other aftermarket master cylinder braces. This bracket features CNC Laser Cut 12L14 with multi-point welded fabrication designed with multi-factory mounting points. It is then powder-coated in a durable black finish for extra protection against rust and corrosion. 

Once installed, you get a highly-reinforced feeling with an immediate braking response. When combined with stainless steel brake lines then you get precise braking performance. 

Hardware will be included to make this Master Cylinder Brace ready for the installation.  


Brand: GrimmSpeed
Color: Black
Installation Hardware Included: Yes
Material: 12L14 Carbon Steel
Location: Master Cylinder
Mfgr. Warranty: Lifetime
Condition: New Product
Return Policy:

RallySport Guarantee - 30 Days

Items that are covered under the RallySport Guarantee offer a 30 day no questions asked return policy.

RallySport Guarantee items may be returned within 30 days of the original invoice date and must include all the original parts and contents for a refund.

The RallySport Guarantee does not apply to products that have been modified, damaged, misused or abused. All returns require an RMA (Return Merchandise Authorization) Number, and freight charges are strictly non-refundable. For more information regarding our freight refund policy, please refer to our return policy page found HERE.
RallySport Guarantee



5 Reviews
5 out of 5 Stars
5 Stars
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Customer Photos and Videos
No user media. You can upload a photo or video of your install by posting a review.
You'll notice this piece. 4 years ago
5out of 5stars

You're going to notice most often at stoplights in daily driving, but the harder you're pushing, the more this thing shows itself. It's not going to change stopping distance appreciably, but it will help you maintain fine control.
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It makes a difference. 5 years ago
5out of 5stars

At first, I didn't feel much of a difference... I'm very easy on the brake most of the time, so driving around the neighborhood slowly after installation didn't yield any eye-popping sensations. I went out for a longer drive and immediately noticed the difference when slowing from 40 to 0 at a stop light - the difference is there, and it's more noticeable with heavier application of the brakes. Can't speak to their abilities on the track, but I can't see how it wouldn't hold up. It's an improvement and definitely enhances the feel, but don't expect it to stop you in half the time.
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Very well made piece 5 years ago
5out of 5stars

After seeing the videos of the amount of flex on the firewall, this is added piece of mind. I didn't feel any difference at all, at least on the street. I have yet to track the car. Great fitment, looks nice and its affordable.
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Weight 6 years ago
5out of 5stars

For those who keep track of such things . . . GrimmSpeed's very nice MC brace weighs 11.5 oz.
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Quality Workmanship, Excellent Design 6 years ago
5out of 5stars

I recently installed the GrimmSpeed Master Cylinder Brace. I wanted an alternative to the strut brace plus brace. Also I wanted a designed foot against the MC as opposed to a bolt head. Fitment during the installation was perfect. Enough flexibility in the bolt holes allowed a perfect alinement of the mounting hardware and the brace bracket. Instructions found on their website aided in the installation.
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