Bear in mind that the stock wiring harness wasn't designed to carry that large of a load, at the least, I would think that you may have to upsize the fuses to a higher amperage.
Here is some more interesting info. on the topic...
Ldub is right, but I would just spend another 30 bucks and go HID.
I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them.
Thomas Jefferson