I ended up getting an H4 LED bulb which has the cooling fan at the front end of the bulb so that the retaining clip, rubber boots, and plug all fit as standard inside the bucket. Works like a charm with the slight exception that the white headlight out warning light on the instrument cluster is on. As for the light pattern, I don't see a difference except that it's obviously a much brighter and whiter light than a halogen bulb will ever be. I'm sure that gives the appearance that the beam pattern has changed, but it doesn't seem like to me. I got the DZG H4 from Amazon for $27 and it simply works with zero effort. FYI headlight trim ring needs to be twisted anti-clockwise an inch or so to remove after removing the 2 retaining screws. Also added a pair of iBrightstar 1157 red LED bulbs from Amazon for the tail/brake lights which include a built-in flasher module. Works great.