Diode Dynamics HID Bulb D1S 5000K (pair) 2SLNh~ 3 user-adjustable rear spring rates

3 user-adjustable rear spring rates for unique vehicle configurations

Necessary when lifting the rear of F450 trucks equipped with sway bar

choppier terrain

7L Powerstroke was engineered to minimize air restriction and flow better than stock

Also available with an R900 Stroker pump (# 1050651)

Diode Dynamics HID Bulb D1S 5000K (pair) 2SLNh~ 3 user-adjustable rear spring ratesFeatures Direct replacement for factory OEM HID bulb. s Perfect D1S fitment, no modification needed. True colors, with no variance. Ceramic base for heat protection. Overview OEM Replacement. If your vehicle is equipped with HIDs, these are a perfect direct replacement. Since HID bulbs lose brightness after just a few months of use, these will provide a nice increase in output. You can also improve your vehicle's styling with a cooler color