Enhance 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 compromising refinement. Thanks to progressive spring rates, low-speed ride quality remains smooth, yet handling tightens up noticeably when pushing through corners. The result is a chassis that feels more direct and engaging, ideal for spirited driving.
Visually, the transformation is just as impressive. The reduced ride height removes the stock wheel arch gap, giving the M135i a level, aggressive stance that looks as though it should have come straight from the factory.
Finished in MMX metallic grey, these springs combine durability with a premium look, and are fully compatible with both static and dynamic dampers.
Key Features
Front drop of 25mm, rear drop of 20mm
Sharper handling and reduced body roll
Maintains smooth ride quality with progressive spring rates
