Tein SKA18-AUB00 S.Tech Lowering Spring for Acura Integra Front spring rate: 6 kilogram per millimeter (335 pounds per inch) Rear spring rate: 4.9 kilogram per millimeter (492 pounds per inch) Front ride height: -64 millimeter (-2.5 inch) Rear ride height: -42 millimeter (-1.7 inch) Progressive spring rate design