I have been thinking about someday converting my headlights to use hid bulbs. I have the sport headlights and I'm wondering about which bulb to replace with the hid setup. I think that replacing both would be the best way to go about it, but getting $$$ to do just one set is going to be enough trouble. Which would yield the best improvement, the 9004's or the 9007's? Thanks
Chris
Chris
