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The ST X coilover kit for 2008–2013 BMW 128i/135i (E82) balances everyday comfort with improved handling and broad ride-height adjustability to tune wheel fitment. It uses a durable polyamide composite spring perch with stainless-steel insert, galvanized zinc-coated struts, an elastomer bump stop with dust protection, and a pressure-resistant sealing package. Dampers are hand-built and dyno-tested by KW in Germany for vehicle-specific tuning.
ST Coilover Kit 08-13 BMW 128i/135i E82
