For Corolla Suspension Lowering Spring (Black) - E100 Improves handling, responses and balance Lowers the center of gravity to improve performance and increases stability Reduces squat during acceleration, body roll at corners and excessive nose-dive under braking Constructed of SAE 9254 chromed cold wounded steel and powder-coated silicon color polished finish for maximum durability Drop Rate - FRONT: 1.25", REAR: 1.25"