Ok fellow FX owners. I just installed my fog LED's in about an hour on my 13 FX37. Really not hard. However, you do have to get on the ground.
Remove all the 10mm bolts and the plastic pop-up tabs from the bottom of the bumper. You DO NOT have to remove the fender wells or the screws holding the bumper in at that location. Then, just basically pull/bend out the plastic bumper from the bottom. Look UP...you'll see the fog light assembly. Reach in, turn the connector counterclockwise, it comes right out. There's a little tab on the top..push DOWN (i.e. squeeze it), and the OEM bulb pops right out. Replace with your LED of choice. (my choice was from VLED's 5K WHITE 10 LED DRL/FOG LIGHT BULBS H8.). Reverse the bumper removal...done.
It was really not hard to do at all. The results are stunning. I hated the bland appearance in the OEM fogs compared to our brilliant HID mains. Now they match.
It should be mentioned to newbies that I am not telling you to remove the bumper in its entirety; just the bottom row of bolts and tabs, and it makes for an easy-access job.
Referring to the user manual, it say, "Install at Infinti dealer".
LMAO