KW Height Adjustable Spring Kit - BMW E90/E92/E93 M3 The KW Height Adjustable Spring Kit re-uses your M3's factory dampers while giving you continuously adjustable ride height. A great alternative to fixed lowering springs for owners who want a cleaner stance without losing OEM comfort characteristics. Re-uses your factory struts/dampers, which remain fully active Continuously adjustable lowering within the tested range via the dirt-resistant KW trapezoid thread Vehicle-specific chrome-silicon steel springs, matched to your standard damper characteristics and wheel loads Sharper, more dynamic steering response without giving up ride comfort Retains all factory driver assistance and comfort systems Notes Lowering range and axle load ratings vary by application — contact us to confirm fitment for your exact E90/E92/E93 M3 (saloon, coupe or convertible) before ordering. Images may not be of this specific kit. Professional Fitting Services: String Theory Garage offers fitting, ride-height setup, corner weighting, and full four-wheel alignment for every KW kit we supply. Get in touch when you order and we'll arrange collection or delivery to our workshop and book your fitting slot. We take pride in our partnership with KW Suspension. If you are unable to locate the specific KW product you're seeking on our website, please don't hesitate to reach out to us for assistance — we are able to offer the full KW range.