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The ST X coilover kit for 1999–2003 BMW E39 525i/528i/540i Sports Wagon without factory air suspension brings adjustable ride height and a balanced street setup to the wagon chassis. Key features include a polyamide composite spring perch with stainless-steel insert, galvanized zinc-coated struts, elastomer bump stops with integrated dust protection and a multi-layer sealing package. Dampers are built and dyno-tested by KW in Germany.
ST Coilover Kit 99-03 BMW 525i/528i/540i E39 Sports Wagon w/o Factory Air Suspension
