I just finished my install. I purchased the Morimoto Elite HID Silverado kit with 5500K bulbs from Fast Headlights. It only took about 20 minutes to hook everything up for the initial test, then several hours routing wires and choosing where to mount items to make the install look clean. I mounted the passenger side ballast and relay under the plastic cover behind the top of the grill and in front of the radiator. The drivers side ballast was mounted to the metal pillar next to the bulb cover. The install looks really clean, but it will be a real pita when/if I need to replace a component.