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The AST 5100 Street coilover kit for 2017–2021 Renault Megane 4 RS (B9) enhances handling while maintaining everyday comfort. This monotube system offers one‑way rebound adjustment and ride height control with springs matched to OEM top mounts and specific spring rates. Monotube dampers deliver consistent rebound control via a large piston and resist aeration; dampers are rebuildable and pair with tuned springs to keep the car stable and confidence‑inspiring on regular roads.
AST 17-21 Renault Megane 4 RS B9 FWD 5100 Street Coilovers w/ Springs
