Superpro Front 22mm 2-Position Adjustable Sway Bar Kit Applications : 2008 Subaru Impreza WRX STI If you are looking for increased cornering capabilities with decreased body roll, Roll Control sway bars are the answer! By being adjustable the Sway bar rates can be increased between 30-50% over OE sway bars by simply changing the end link position on the sway bar. Images of item are shown above may be actual or for product reference only.