This kit from Perrin come with insert bushings that take up the free space in the rear subframe stock bushings. This will help keep the subframe from moving around during aggressive driving.
Fitment:
Subaru WRX - 2008-2014 2.5 Turbo
Subaru STI - 2008-2014 2.5 Turbo
Subaru Impreza - 2008-2011 2.5 Non-Turbo
