Set aside a couple of hours, be careful transferring the retainers from the original headlight to Ed's rep the Helix brand comes with the retainers already in place, those retainers brake very easy. You can do this without taking off the whole bumper cover but I strongly recommend that you take it off , it's only a few more screws and makes everything easier and reduce the chances to scratch anything so 20 min to take the bumper off , about an hour to swap the headlights and install you HID if you are going that route I did LED's on mine and another 20 to put the bumper back on
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