AST BMW F40 M135i xDrive Lowering Springs

Give your BMW F40 M135i xDrive the extra stance it needs with AST lowering springs. Available in two configurations, depending on how much you want to lower your vehicle's ride height by. If you want a more practical setup for daily driving, choose the higher option. If stance is your primary focus, the lower setup is for you.

AST Lowering Springs are manufactured from a premium high tensile chromium-silicone wire which is handpicked by AST engineers for its quality and metal consistency.

Each spring is cold wound and then heat-treated to increase hardness and reduce internal stresses present after winding. Each spring is then individually shot peened, phosphate treated, and then powder coated to outlast even the life of the vehicle.