The easiest is either a high quality H11 bulb or modify an H9 bulb to get an extra 15 or so watts (which is cheaper). I also found that a better fog light helps. Lastly do a quick verification of the headlight calibration. It might be that they are aimed a little too high (was for me).
[video=youtube;_mrbdQmck7E]https://www.youtube.com/watch?v=_mrbdQmck7E[/video]