They were not all that hard to do, since I already had the headlights pulled apart to do the projector mod. But again, they only will show up when the headlights are off at night. You either need really bright LED's, or do research on how BMW angel eyes work. They actually use fiber optics and halogen bulbs to get theirs as bright as they are.
you dont need to do that much work as far as researching how it works, it can be as simple as getting brighter leds or imo just putting some sort of divider like a piece of sheet metal or any material between the high and low beams, really simple actually. i would do it but id rather find new headlights to work on instead of the ones i have already.