AST 40mm/40mm Lowering Springs | BMW 3 Series F30 (12-19) (ASTLS-14-396)AST Lowering Springs Part #: ASTLS 14 396 Overview The AST 40mm 40mm Lowering Springs are designed to enhance the handling, appearance, and stance of your BMW 3 Series F30 (12 19). These high quality suspension components are ideal for enthusiasts seeking a more aggressive look and improved driving dynamics. Crafted to provide a lower center of gravity, these springs help reduce body roll and improve cornering response, all while maintaining ride