think about what you're doing. the car will ALWAYS produce 12VDC, or more so around 14VDC running.
the wattage of the bulbs is going up, requiring a higher amperage to maintain that 12VDC (V=IR [resisitance is static]). thus, you are increasing the pull these bulbs will have on your electricaly system.
technically speaking, the lumens output from the 55W bulbs are not going to be that much of an increase, basically because of power constraints. save yourself some time and money, go for the 35W bulbs like 99% of the people do.
