Ultimate-match front coil shock springs for pan automobile front side suspension system with 4mm king pin axle offer another array of alternatives to fine-tune your car. Powder color-coded for fast & effortless recognition. Silver color. Group of 2. Developed through substantial evaluation and rushing experience. Stiffness is managed by the depth for the wire and also by the number of coils; softer springs have actually a lowered "C" value, while stiffer springs have actually a higher "C" value.