The KW Suspensions height-adjustable spring kit was developed for the BMW M5 Sedan (G90). It adds continuous ride-height adjustment while retaining the factory adaptive dampers with electronically controlled valves. It is compatible with OE suspension struts using welded or slip-on spring perches.

During installation, the original springs, elastomer elements, and dust protection parts are replaced with KW components. The supplied aluminum threaded sleeves fit onto the factory suspension struts for precise lowering without removing the original damper system. Progressive-rate main and auxiliary springs are designed to preserve driving dynamics and ride comfort.

The kit works with the BMW M Comfort, Sport, and Sport Plus driving modes. The approved lowering range is 5–20 mm at both the front and rear axles. Installation by a qualified workshop or KW authorized dealer is recommended.