GrimmSpeed 091038 Master Cylinder Brace 2013-15 BRZ and Scion FR-S

Good product and does the job well.Used for Scion FRS

For lighter brake pedal applications, such as normal street driving, there was essentially no difference. But for strong applications of the brake pedal, it was quite evident the firewall flexes quite a bit. My FRS now feels like it went pass linear braking to exponential braking, as if Subaru had already accounted for the flex for the brake booster design.The part is very heavy gauge steel. I didn't like how it uses just two flimsy M8 screws to fasten to the strut tower. I wanted to drill a third hole to take advantage of the third available mounting nut already on the stut tower, but Grimmspeed put a fine CNC cutout of their logo there, making that impossible. That logo probably also doubled the cost of this item. Not cool.

Totally worth it. The brake does feel more responsive and gives you the reliability you want. It also looks super clean in the engine bay with a red cap to avoid stressing on the brake piston as the brace has a slightly larger surface to hold the booster.

A bit costly, but for my 2013 FR-S the brake pedal feel was definitely more touchy when driving hard and normally.

This definitely firms up the brake feel and very easy to install. Build quality is superb and I really like the wider cap at the end that distributes the pressure evenly on the cylinder while other products have smaller and pointy end that might damage the cylinder under heavy load.

Serves it's purpose very well.It fit the 2015 Scion FR-S Release Series 1.0 that it was installed into.The brakes feel instant to the touch when you tighten it really well.Good Product!

5 stars because the product is manufactured well. I took this with me to a track day, did a couple runs and then installed it. There is a bit of a difference, but it was hard to tell, and I like to brake hard and late!

great piece to hold the bmc still if you're hard on the brakes.