How are you going to get electrocuted if the lights are off? The WRX has halogen lamps not H.ID.'s like the STI. That warning is for the STI. The owners manual does not explain how to change the bulb? Reading comprehension is important in order to follow directions.... (j/k) Also change them in pairs. Don't just do one side and don't buy any of the b/s "bright white" bulbs. Something like Phillips Xtreme Power or Osram Night Breakers will make a noticeable difference. Good luck!!