Tein SKJ70-AUB00 S.Tech Lowering Spring for Dodge Magnum Front spring rate: 4.1 kilogram per millimeter (230 pounds per inch) Rear spring rate: 11.5 kilogram per millimeter (196 pounds per inch) Front ride height: -41 millimeter (-1.6 inch) Rear ride height: -38 millimeter (-1.5 inch) Progressive spring rate design