The coil spring spacer will be inserted into your coils to or on top of your coils ...which IMO does nothing but mess up your ride quality, the strut spacers are bolted on top of your strut and will keep your ride quality. coil spacers are used by NASCAR routinely to loosen up or stiffen up suspension.
08 FX4... Flowmaster Exhaust, line-X, Sky Jacker leveling kit. 295/65/20 Nitto trails mounted on 20 X 9 Carol Shelby wheels. AIRAID CAI. Harley headlamps and LED Tails & 3rd brake lights,custom upper and lower Grill. Edge Evolution. Interior/Exterior LED lighting, NFAB step bars.