AST Lowering Springs For BMW 5 540i/550i 07/2003-03/2010, Front 30 , Rear 30

The AST Lowering Springs for BMW 5 540i/550i (07/2003-03/2010) are expertly engineered to enhance your vehicle’s driving dynamics by lowering the ride height by 30mm at both front and rear. Manufactured with precision on advanced Wafios coiling machines, these cold-coiled springs are designed to reduce the center of gravity while maintaining a high level of comfort comparable to the original equipment manufacturer (OEM) springs. Constructed from premium materials, the AST Lowering Springs offer a progressive spring rate that balances improved handling and ride quality. This ensures that your BMW delivers a sportier stance and enhanced cornering stability without compromising everyday drivability. Each set is developed specifically for the vehicle model to guarantee a perfect fit and optimal performance. With over 2500 applications covering vehicles from 1966 to the present, AST springs have a proven track record of reliability and quality. The product includes a lifetime warranty against breaking, underscoring the brand’s commitment to durability and customer satisfaction. These lowering springs are ideal for drivers seeking a refined suspension upgrade that respects OEM comfort standards while improving vehicle dynamics. Please note that these springs are not suitable for vehicles equipped with level adjustment systems or four-wheel drive (4WD) configurations. Additionally, vehicles fitted with factory sports or M-Sport suspension systems will experience approximately 25mm less lowering than standard models. Lowering Specifications Front lowering: 30mm Rear lowering: 30mm Progressive spring rate for balanced performance and comfort Cold-coiled using advanced Wafios machinery for precision and durability Lifetime warranty against breaking Compatibility BMW 5 Series 540i/550i models from 07/2003 to 03/2010 Not suitable for vehicles with level adjustment systems Not compatible with 4WD (four-wheel drive) vehicles Reduced lowering effect (approx. 25mm less) on vehicles with factory sports or M-Sport suspensions