Don't forget to get some premium headlight bulb fluid, it really helps with light output.
Sylvania Silverstars I think are going to be your best bet as far as halogen light goes. You can also play around with aiming your headlights so you get the best output pattern out of them.
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'99 Toyota 4Runner LTD - Dual Locked | Geared | Mid-Travel | 35s | Armored