Firstly, Which country is this for?
Canada.... needs Daytime running lights
Europe..... needs front clear fogs, and rear fog (Its integrated into the rear taillight)
Japan...... needs Front amber fogs, I do not know if they need the rear
Now, aftermarket fog lights would be simpler, and cheaper to install...but since you asked....
Yes, it is possible to mount the edm fog lights or Canadian DRL's in a usdm
NSX. The mountig holes are there in the usdm cars for either. The edm fog lights use different brackets than the Canadian DRL's although the mounting holes in the bumper are the same.
They are not pre-wired for fog lights. You will need a relay, wiring and a switch.
The oem fog lights are jdm or european, so they are not available at any US acura dealer, you would need to buy them from a honda dealer in europe or japan. If you need Canadian DRL's you can buy them in canada, for that ypu will need the drl interface module for the daytime running, or you can wire it so its on when the car is on. Or you can get everything at science of speed, check out their website.
The oem edm fog switch is where the coin tray is, That also included switches for the front fog, rear fog, headlight washer, and headlight aim switches. the panel and switches would need to be bought in europe