AST Lowering Springs | 2019+ BMW M340i xDrive (ASTLS-21-031)AST Lowering Springs Universal Fitment Part #: ASTLS 21 031 Overview The AST Lowering Springs for the 2019 and newer BMW M340i xDrive are engineered to optimize your vehicles handling, stance, and overall aesthetic. Designed specifically for the M340i xDrive models, these springs help achieve a more aggressive look while enhancing driving dynamics. They are an ideal upgrade for enthusiasts seeking improved cornering response, reduced body roll, and a