Remember that the HB2 bulb is slightly different (in order to be DOT compliant) so I don't not know if the H4 bulb will plug into the same housing.
NOTE: 80 watts is beyond DOT approval and could get you a ticket if
the LEO was really sharp and inspected your lights.
Just my 1.7 cents worth but if you wish to stay legal the 60/55 will help.
On the flip side, I know guys (and gals) that have H4 lights that switch the bulbs out for offroading events that do use the 100 / 80 version and they say they are great. I beleive that there is on higher wattage bulbs than that but don't know the number.
Remember that a more precise beam can still be too bright for oncoming traffic and I don't like the idea of blinding the guy driving straight at me with a 18 to 24 inch margine for error.
This is only my opiniion and is not meant to infringe on anyone's free choice
for modifying their beloved toy.
jimm1009