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I have read that you can modify an H9 bulb (High Beam) to fit the H11 socket. The only difference is a small key in the bulb that needs to be ground out. This will take the little cap off the end of the bulb and the bulbs are 10 watts stonger. I haven't done this yet, but plan to in the near future. Here's a borrowed picture of the bulb.

Modified H9
 
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