Upgrade the stance, handling, and adjustability of your BMW X3M or X4M with the AST Adjustable Lowering Spring Kit. Unlike fixed height springs, this kit lets you fine tune ride height after installation, so you can dial in the perfect balance of style and performance. Whether you want track ready settings or a personalized street height, these springs adapt without replacing your suspension.
Built for compatibility with factory adaptive dampers and driver assist systems, AST’s proprietary design keeps your BMW’s comfort and safety features fully functional, with no compromise.
Height Adjustment Range
Front: 0 to 40 mm
Rear: 0 to 35 mm
Product Details
Designed for BMW F97 X3M and F98 X4M, including Competition models
Progressive spring rates tuned for everyday comfort and spirited handling
Compatible with factory adaptive dampers / EDC, maintains full system functionality
Each spring is blocked and computer tested to reduce initial settling
Durable finish resists corrosion and wear
Improves steering response, lowers center of gravity, and enhances vehicle aesthetics
