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ST XA coilovers for 2009–2016 BMW Z4 (Z89), offering broad ride‑height adjustability and 16‑click rebound damping to fine‑tune driving dynamics. The kit uses a polyamide composite spring perch with an embedded stainless steel insert to prevent corrosion, includes dust protection to shield the piston rod and features galvanized housings. Dampers are hand‑built by KW and tested on a shock dyno for consistent performance.
ST XA Adjustable Coilovers 09-16 BMW Z4 (Z89)
