The BMR handling spring kit for 2015–2017 S550 and 2024 S650 Mustang is tuned for road course and autocross use, lowering the car and stiffening response with linear rates (246 lb/in front, 980 lb/in rear) for maximum cornering support. Built from chrome-silicon wire, CNC cold-wound, stress-relieved and shot-peened, these red powdercoated springs are computer tested and backed by a lifetime warranty against sag; install time is about 3–4 hours.
BMR 15-17 S550 Mustang Handling Version Lowering Springs (Set Of 4) - Red