FSTB Master Cylinder Brake Brace 2016-2021 - Two Step Performance

FSTB Master Cylinder Brake Brace 2016-2021

27WON Performance
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Under heavy braking the brake master cylinder and firewall on your Honda Civic can flex.

The pressure from your foot pressing hard on the brake pedal can lead to some uninspiring feedback and reduce your confidence when diving hard into a corner on the track or in an emergency braking situation where you need to come to stop as quickly as possible.

The 27WON FSTB Brake Brace is designed to eliminate the flexing and movement of your brake master cylinder and help decrease the time for brake pad engagement. Get a proper track like feel and some extra confidence into your Civic braking system.


Our Front Strut Tower Bar is already packed with features that make it the best FSTB for your CivicX. In order to truly REDEFINE the Aftermarket we needed to take it to the next level. Our Brake Brace upgrade capitalizes on the strength of our bar and ups the ante by improving brake pedal feel as well.

This is a simple bolt on upgrade that can easily be installed and adjusted in a matter of minutes.


Each Brake Brace is made from solid one piece billet aluminum and gets a stealth black powder coat finish. As with everything you get from 27WON, all the hardware you need is included.


Why you need a brake brace: Stop The Flex

  • Will not work on RHD fitment vehicles
  • Product requires 27WON FSTB
  • Will not work on NA 2.0L Civic due to OEM Intake location


What is a master cylinder Brake Brace and what does it do?

The master cylinder on your car is a cast metal piece with a reservoir on top full of brake fluid. Its purpose is to take the fluid from its reservoir and send that fluid/pressure to the 4 corners of your car to act on the brake calipers and help slow down the car. This master cylinder has a mechanical link to your brake pedal and receives the pressure you generate when you step on the pedal.

Sadly the master cylinder is attached to your firewall (a very thin section of metal the separates the driver from the engine bay) and it has a tendency to flex and move a lot when you are hard on your pedal. This can result in a delay in pad engagement and poor driver feedback.

Our Brake Brace attaches to your 27WON FSTB bar with two simple bolts and acts as a hard stop for the master cylinder. This gives a counter force to the cylinder and eliminates flex from the firewall. With the brace installed, some of the energy that went to flexing the firewall now helps increase brake engagement and driver feedback.


Available in two versions, we have a Brake Brace for your particular Honda Civic.

    • Select (sedan & coupes-only) to get the correct brace to attach to your 2016+ Honda Civic, SI and other 1.5T 4-door and 2-door models. will not fit NA 2.0L models
    • Select (hatchback-only) to get the brace for your Civic Type R and all 5-door hatchback models 2016+.

  • Limited Lifetime Warranty
  • Designed in Las Vegas, Nevada, in the U.S.A
  • Complete online installation instructions through the Dozuki App: Search “Performance Installs”
  • Install app downloads can be found here Play Store and Itunes