I'm looking to upgrade my headlights and fog lights from the stock to LED. I've done a little research online and so far have found that the GTR Lighting Ultra2 have the best overall test review. anyone here have these and can give me their opinion? and if its a simple swap/replacement or if there is a whole process that will need to take place since i've currently just got stock headlights? opinions on any other headlights are welcome! my nighttime road vision is horrible and need the best!