The BMR lowering spring kit for 2015–2023 S550 and 2024 S650 Mustang is tailored for power-adder applications, offering a 170 lb/in front and 740 lb/in rear rate to maintain proper ride height with added front-end weight from superchargers or turbochargers. CNC cold-wound from chrome-silicon wire, springs are stress-relieved, shot-peened and computer tested. Red powdercoat protects finish and BMR provides a lifetime warranty against sag; front and rear sold separately as needed.
BMR 15-17 S550 Mustang Performance Version Lowering Springs (Set Of 4) - Red