MMX BMW F40 M135i xDrive Lowering SpringsEnhance the stance, handling, and driving feel of your BMW M135i with the MMX Performance Lowering Spring Kit, engineered specifically for the F40 chassis. With a carefully tuned drop of 25mm at the front and 20mm at the rear, these springs deliver sharper turn in, reduced body roll, and a more planted, responsive feel all while maintaining everyday comfort. By lowering the centre of gravity, the springs unlock lighter, more agile dynamics without