My High Beam factory bulb spec is 9005 and the fog/driving light (in the bumper) is H11.

What Crowz said about the coding options to get 50% brightness in the high beam bulbs when used as DRLs is accurate.

Source yourself the nicest pair of High Beam LEDs and driving/fog bulbs as your budget allows and have at it.

The LEDs with an internal fan seem to offer great lumen output (probably because they have to reject so much heat generated by the LED) from what I've seen in reading their specs.

I am fond of the 5000K-6000K color range which works for me.

Mike

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Mike
Dallas, TX & Appleton, WI
2003 E53 4.4i Pearl Beige
2003 E46 330Xi Monaco Blue
2007 E90 335Xi Black Sapphire Metallic
2011 F25 X3 28i Black Sapphire Metallic