Sylvania Ultras or Silverstars are your best bet. Don't buy the cheap ebay bulbs which are higher wattage, but use colored glass. They may be brighter right in front of your car, but your distant vision suffers.
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03 GT, STB, GM HD sway bars, 35% tint, GE893(37watt)fogs, Flowtech Terminators, 180 T-stat, ZZP DP & PCM, Ceramic PLOG & Crossover, 18" glasspack, 2007 17" Mustang Bullits 235/55/17 Pirelli PZero Nero, 12" R1 D\S rotors, gutted air box, GTP radiator