Radium Engineering Master Cylinder Brace Subaru WRX / STI 2015-2021

Got tired of hearing that firewall flex from the braking pressure of the master cylinder this is the solution! After carefully researching this product I decided to give radium

A go and I have to say product APPROVAL! Build quality is exceptional and the results showed instantly!

Install is a PITA for guys with big hands but with some ingenuity and flex it’ll be worth the time and daily driver experience!

10/10, would recommend

Quality brand

quality product

Stiffened up the brake pedal a decent amount and a little more responsive know. Quick shipping and a quick easy install I would definitely recommend!

Install was super easy, the product has sleek design and does exactly what it's supposed to do, stop movement in firewall during hard braking. Bonus feature is it's designed to hold their catch can so it has these mounting holes on the flat side of it which I don't have. I have a IAG AOS so now I have a spot to mount other things as I keep modifying my car. also, even for the cheapest shipping, I ended up getting it within three or four days after I ordered it to my house.

Simple install. Can definitely tell the difference but it doesn’t really help as much with braking feel as I thought it would. But still got rid of the springy feel completely

easy to install and makes a big difference in brake feel.

This is a solid built piece and install was easy . Make sure to blow out the 3 holes where the brace mounts to the strut tower/inner fender , and use loctite on the threads . Once it's mounted just run the bolt down to the mount on the master cylinder , give it a little preload , and then tighten up the jam nut . I had a though about buying a 3/4"-1" longer ss bolt and using a jam nut on both sides ,but that is probably overkill . The brake pedal is noticeably stiffer , and I know it's not a placebo effect because I had a couple other people drive my car ( who both drive 20/21 WRX'S ) without knowing about the Radium M.C brace install , and they both affirmed that the brakes are "stiffer" .

Super easy install, high quality product.

Makes a noticeable difference when your getting on the brakes hard. Looks good and was easy to add on. Be sure to use some thread locker though.

Easy install, looks great, makes a noticeable difference when you’re braking hard.