Solid as a rock, the PERRIN Performance Master Cylinder Support quickly solves a long-time Subaru braking issue: flexing of the firewall under hard braking. *Easy Upgrade* The PERRIN Master Cylinder Stiffi is a quick and affordable upgrade that adds positive brake feel and increased style under the hood. The PERRIN Master Cylinder Support bolts from the brake master cylinder to the driver-side shock tower to give you a firm pedal feel. *Construction* The PERRIN Performance Master Cylinder STIFFI is machined from 6061 billet aluminum for extreme stiffness. *Finish* Anodized black with a bold PERRIN logo to dress up the engine bay & show off to your friends. PartNumber : paPSP-BRK-400 Description : Master Cylinder Support Brace 2006-2007 Subaru Impreza 2.5i H4.2458cc Engine Components::Hardware - Singles 2002-2004 Subaru Impreza Outback H4.2458cc Engine Components::Hardware - Singles 2005-2007 Subaru Impreza Outback Sport H4.2458cc Engine Components::Hardware - Singles 2002-2005 Subaru Impreza RS H4.2458cc Engine Components::Hardware - Singles 2002-2004 Subaru Impreza TS H4.2458cc Engine Components::Hardware - Singles 2002-2005 Subaru Impreza WRX H4.1994cc Engine Components::Hardware - Singles 2006-2007 Subaru Impreza WRX H4.2458cc Engine Components::Hardware - Singles 2006-2007 Subaru Impreza WRX Limited H4.2458cc Engine Components::Hardware - Singles 2004-2007 Subaru Impreza WRX STI H4.2458cc Engine Components::Hardware - Singles 2007 Subaru Impreza WRX STI Limited H4.2458cc Engine Components::Hardware - Singles 2006-2007 Subaru Impreza WRX TR H4.2458cc Engine Components::Hardware - Singles