SuperPro 2008 Subaru Impreza WRX STI Front 22mm 2-Position Adjustable Sway Bar KitBrand Superpro Part Number RC0013FZ 22 Category Suspension Sway Bars Condition Brand New Original Manufacturer Packaging 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.