PRODUCT DESCRIPTION
Product details
MMX Lowering Springs | BMW F3x | 4 Series
MMX performance lowering springs for the BMW 435i, 440i, 430d and 435d — both rear-wheel drive and xDrive versions — provide the perfect blend of improved handling and a sportier stance without sacrificing daily driving comfort. By lowering the front by up to 40mm and the rear by up to 35mm, these springs provide your 4 Series with increased stability, improved response, reduced body roll and more precise turn-in.
Series
Chassis Code
Model Year
Drivetrain
Drop Amount
4 Series
F32
2013-2020
Rear-Wheel Drive (RWD)
Front: 30mm / Rear: 30mm
4 Series
F32
2013-2020
All-Wheel Drive (xDrive)
Front: 30mm / Rear: 25mm
4 Series
F36
2014-2020
Rear-Wheel Drive (RWD)
Front: 30mm / Rear: 30mm
4 Series
F36
2014-2020
All-Wheel Drive (xDrive)
Front: 40mm / Rear: 35mm
The perfect blend of improved dynamics and superior aesthetics, without sacrificing ride comfort.
The MMX Performance Lowering Spring Kit is one of our best-selling upgrades, and it's easy to see why. Renowned for delivering the perfect blend of sharper handling, improved stance and everyday comfort, it's the ideal modification for your BMW 4 Series F32 and F36.
Lowering the vehicle's center of gravity — by up to 40mm at the front and up to 35mm at the rear (depending on the model) — makes a huge difference to its road behavior. Body roll is noticeably reduced, turn-in is more precise and overall dynamics are greatly improved, all without losing the comfort and refinement characteristic of a BMW.
Thanks to carefully selected progressive springs, ride smoothness at low speeds is maintained; in fact, it feels more stable in the city. But when accelerating, the 4 Series chassis comes alive: it feels more agile, direct and with precise response in corners. Just what the 4 Series needed.
Visually, the difference is just as striking. The lower body height gives the car a more aggressive and determined stance, without being overdone.
If you opt for a lower or firmer setup, you risk unbalancing the suspension, with mismatched damping and limited spring travel resulting in a harsh and unstable ride. That's why MMX springs are specifically designed to work in harmony with M dampers, both static and adaptive.
Vehicles equipped with factory M Sport suspension already have a reduced height of approximately 10mm compared to standard height.
Features
More precise handling with reduced body roll.
Smooth ride thanks to progressive spring stiffness.
Increased chassis response at high speeds.
Compatible with adaptive and static dampers.
No bouncing or harsh bumps: perfectly adjusted spring stiffness.
Premium metallic grey finish.
Direct fit for BMW 4 Series F32 and F36 variants.
Additional Information
Vehicles equipped with factory M Sport suspension already have a reduced height of approximately 10mm compared to standard height.
Vehicle Compatibility
Series
