Tein SKJ82-AUB00 S.Tech Lowering Spring for Chevrolet Cobalt SS 2.0L/LS 2.2L Front spring rate: 3.1 kilogram per millimeter (174 pounds per inch) Rear spring rate: 2.8 kilogram per millimeter (710 pounds per inch) Front ride height: -44 millimeter (-1.7 inch) Rear ride height: -43 millimeter (-1.7 inch) Progressive spring rate design