Tein SKB14-AUB00 S.Tech Lowering Spring for Honda Civic Front spring rate: 4.2 kilogram per millimeter (235 pounds per inch) Rear spring rate: 4.9 kilogram per millimeter (123 pounds per inch) Front ride height: -35 millimeter (-1.4 inch) Rear ride height: -32 millimeter (-1.3 inch) Progressive spring rate design