SuperPro RC0036RZ-27 27mm 2-Position Adjustable HD Rear Sway Bar KitSuperPro RC0036RZ 27 27mm 2 Position Adjustable HD Rear Sway Bar Kit If you are looking for increased cornering capabilities with decreased body roll, Roll Control sway bars are the answer! Adjustable sway bar rates can be increased between 30 50% over OE sway bars by simply changing the end link position on the sway bar. Warranty: 3 YearsFITMENT 27mm 2 Position Adjustable HD Rear Sway Bar Kit works with the following vehicles. 2007 mazda 3 mazdaspeed