I just changed these, one of the biggest unworthy thing I have ever done. I put HIDs in and it took almost 6 hrs. I couldn't get the fog light bracket out so i had to take off bumper and intercooler. The bumper is attached to the crash bar in maybe 16 places, most of which are near impossible to get a wrench into.
Bumper has to come off as I'm replacing the awful halfords style mesh with oem. Thought I'd fit better fog light bulbs at the same time. Just need to know what type, eg. H3 H4 etc.