You can never have too much chassis stiffness. Weight aside, the more the better. Chassis bracing maintains alignment angles and spring rates by greatly reducing body or chassis flex. In fact, it helps every component in the suspension system do its job properly and you can feel the difference through improved turn-in, sharper steering response along with greater steering feedback.

Fitment:
Subaru Impreza 2.5i 2006
Subaru Impreza 2.5i 2007
Subaru Impreza Outback 2002
Subaru Impreza Outback 2003
Subaru Impreza Outback 2004
Subaru Impreza Outback Sport 2005
Subaru Impreza Outback Sport 2006
Subaru Impreza Outback Sport 2007
Subaru Impreza RS 2002
Subaru Impreza RS 2003
Subaru Impreza RS 2004
Subaru Impreza RS 2005
Subaru Impreza TS 2002
Subaru Impreza TS 2003
Subaru Impreza TS 2004
Subaru Impreza WRX 2002
Subaru Impreza WRX 2003
Subaru Impreza WRX 2004
Subaru Impreza WRX 2005
Subaru Impreza WRX 2006
Subaru Impreza WRX 2007
Subaru Impreza WRX Limited 2006
Subaru Impreza WRX Limited 2007
Subaru Impreza WRX STI 2004
Subaru Impreza WRX STI 2005
Subaru Impreza WRX STI 2006
Subaru Impreza WRX STI 2007
Subaru Impreza WRX STI Limited 2007
Subaru Impreza WRX TR 2006
Subaru Impreza WRX TR 2007