AST Adjustable Lowering Springs for G8X 2021+ BMW M3/ M4 (ASTALS-21-004) Mechanix Wear namely it was observed that

namely it was observed that cars over 450bhp were randomly getting errors from the stock solenoid dump valve not functioning

5 Eclipse GST/GSX

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AST Adjustable Lowering Springs for G8X 2021+ BMW M3/ M4 (ASTALS-21-004) Mechanix Wear namely it was observed thatWith this set of Height Adjustable Lowering Springs, youre not limited to a fixed lowering range on your M3 or M4. Thanks to the AST height adjuster, you can fine tune your ride height even after the kit has been installed, giving you ultimate flexibility. The AST Adjustable Lowering springs offer a solution to reduce your vehicles center of gravity while preserving the comfort youre accustomed to from the original equipment manufacturer (OEM)