If you want a no-bullshit plug n'play upgrade that is simple and as effective as you will get with halogen bulbs – get some piaa Xtreme white bulbs. They won't last more than a year most likely and they cost about $50 a set. But they will help you see better and not blind other drivers.
I ran them in my 4runner until they burnt out and was very happy with them aside from their short lifespan which is typical I've learned of any high performance halogen style bulb. You get increase light output but lose longevity in the trade. So if paying $50 a year for good solid lighting is not an issue – try the Piaas.
After my Piaas died, I switched over to the Sylvania whatever bulbs that are
supposed to be as bright as the Piaas – but they aren't. They're better than stock but that's it. I'll be switching both my trucks to Piaa again soon.
Obviously no halogen is going to compete with HIDs – but if you don't want mess with HIDs and if you feel LED aren't good enough yet (like me), the Piaa bulbs fit the bill.
Switching over to the 99+ style headlights with clear lenses is also advised if you want the best lighting without going to HIDs.
