The two primary functions of sway bars are to control body roll and to determine the understeer or oversteer behavior of a vehicle. Stock sway bars have low torsional spring rates because they are manufactured from small diameter bar stock or tubing. BMR Suspensions SB762 rear sway bar kit was designed by factoring in the vehicle weight, application, motion ratio, coil spring rate, and adjustability requirements. Manufactured from heavy-duty 22mm DOM steel tubing, the SB762 is cold formed to better resist torsional fatigue and retain its "memory" far longer than the hot-formed bars used by many competitors. The sway bar is CNC-formed for exact manufacturing tolerances and repeatable high quality. The SB762 attaches to your S550 Mustang with polyurethane bushings, reducing the deflection from the stock rubber bushings. These bushings are molded from 88-durometer, low-deflection, polyurethane, and are internally fluted to keep grease in the bushing. BMR Suspension designed the SB762 sway bar kit for street performance, autocross, and road race applications. The SB762 rear sway bar gives you a 29-41% increase in rate over the stock bar. The rate increase improves the handling characteristics of your S550 Mustang so you can drive harder through corners with minimal body roll. The hollow design allows for loads of strength in the lightest package possible. This means increased performance with no sacrifices. The SB762 attaches to your Mustang with 88-durometer polyurethane bushings, reducing the deflection from the stock rubber bushings, allowing for more sway bar control, which equals better handling. When performance is a must, rely on BMR Suspension! BMR Suspensions SB762 sway bar kit is available in black hammertone and red powdercoat for long-lasting good looks. Installation time is about 1-2 hours. Proudly made in the U.S.A.!