BMR 15-22 S550 Mustang Sway Bar Kit with Bushings Front and Rear RedFits all S550 Mustangs; Designed for street performance, autocross, and road race applications; Dramatically reduces body roll; 19% 55% increase in sway bar rate (front), 29% 41% increase is sway bar rate (rear); Cold formed to better resist torsional fatigue; Manufactured from 35mm heavy wall DOM tubing (front), Manufactured from 22mm heavy duty bar stock (rear); Front sway bar is three way adjustable for street and track use ; Adjustability allows