The primary roles of sway bars are to manage body roll and dictate a vehicle's understeer or oversteer behavior. Stock sway bars, made from small diameter bar stock or tubing, have low torsional spring rates. BMR Suspensions' SB763 front and rear sway bar kit, designed considering vehicle weight, application, motion ratio, coil spring rate, and adjustability needs, is manufactured from heavy-duty 38mm (front) and 25mm (rear) DOM steel tubing, cold-formed for enhanced resistance to torsional fatigue and longer 'memory' retention. CNC-formed for precise tolerances and consistent quality, the sway bar features welded thrust washers on the front bar to locate bushing mounts, crucial for proper sway bar positioning and preventing lateral movement during intense cornering. The SB763 attaches to your S550 Mustang using low-deflection polyurethane bushings, reducing deflection from stock rubber bushings. These bushings, with 95-durometer hardness for the front and 88-durometer for the rear, have internal flutes to retain grease for optimal performance.