Just for your information, I bought and used the high wattage "super white" bulbs on my previous car (a Honda CRX). Three things:
a) Although they were higher wattage and consumed 50% more current (i know cause I checked it with my digital ammeter), they produced much LESS light than the stock bulbs.
b) They only lasted a couple of months.
c) I got pulled over by the cops and was given a fixed ticket to have them removed. In my question "What is wrong with them", the cop answered: "Only the police are supossed to have blue bulbs". The cop might have had a serious case of color-blindness since these bulbs were only SLIGHTLY blueish, but nevertheless the point is that you may get in trouble with the police.