I have been weeding through the post and have not found anything to help me out. I have the Z71 package on my 07 NNBS, the replacement bulb is a PS24WWF. Reading the reviews for the comparitive Putco bulb and they burn out quick and burn the fog light itself. I am wanting to go with possibly HID, still deciding. I don't want to remove the OEM fog light, just upgrade the bulbs. Has anyone made this upgrade to a different bulb? If so, was the OEM fog light left in place? How was bulb and/or lens modified for upgrade bulb? If someone could point me in the right direction it would be greatly appreciated.