I say this a lot but this is an absolute must do mod for the 08-14 WRX/STI owners. We habitually have firewall flex . This brace helps prevent that. Between this brace and the Circuit motorsports master cylinder brace, I have eliminated most of the firewall flex/ squeak. This brace made my brake pedal and clutch feel a lot more firm than before. For less than $100, this is a great mod. Nice quality as you should expect from grimmspeed.