BMR 15-17 S550 Mustang Front Hollow 35mm 3-Hole Adj. Sway Bar Kit - Black HammertoneThe sway bar is 3 way adjustable to tune the amount of torsional spring rate and to determine the handling characteristics (understeer oversteer) of the vehicle. BMR's suspension designed the SB044 sway bar for street performance, autocross, and road race applications. The large adjustable sway bars three positions give you the versatility to drive to and from the road course or autocross and still out handle the competition with the same sway bar.