Even if you convert them to HID you'll only have one on when using low beam because unlike H4 there's no dip function -- the high beam is permanently positioned at a higher angle.
There is a kit around that makes the high beam function with the low, but at a much lower than normal brightness. That might keep nosy cops at bay but wouldn't add much light to the road.
2014 350 EXC-F
2006 Djebel 250XC