AST Lowering Springs For BMW 5 520i/523i/525i/528i/530i/520D 07/2003-03/2010, Front 30 , Rear 30 Mk7 If you want your X3

If you want your X3 to feel more responsive without touching the ECU

Want stress-free installation and bedding-in

Keep performance consistent by protecting the threads and collars

high-rigidity aero piece

AST Lowering Springs For BMW 5 520i/523i/525i/528i/530i/520D 07/2003-03/2010, Front 30 , Rear 30 Mk7 If you want your X3The AST Lowering Springs are expertly engineered to enhance your BMW 5 Series driving experience by lowering the vehicles center of gravity without compromising the comfort and handling characteristics you expect from OEM springs. Manufactured using advanced cold coiling technology on the renowned Wafios coiling machines, these springs ensure superior precision and durability for long lasting performance. Designed specifically for BMW 5 520i 523i 525i