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The ST X coilover kit for Audi A4 (B9) 2WD sedan delivers adjustable ride height and a tuned balance of road comfort and cornering control. Application-specific dampers and galvanized zinc-coated steel struts resist corrosion, while a composite spring perch with a stainless insert enables seamless height adjustment. Dust protection and multi-layer seals improve longevity, and the system is hand-built and dyno-tested for consistent results.
ST Coilover Kit Audi A4 2WD (B9) Sedan
