I have an ARB in my jeep...in the rear. I would have one in the front, but I havent decided on what axle I wanna end up with yet. They arent difficult to install really. I put mine in when I re-geared my dana 44. No different then setting up a regular carrier. Most full carrier lockers come with little formulas you use to install them so you dont need to do a full set up.
He is talking about something electric though. E-lockers are great, because all you need to do is run a switch and a couple wires. No air lines, no pumps, just a switch.
Like I said..just do a search, read up on them. You'll find some guys with cars running them. If they are good enough to use on the trail in 4-low (lots of tq), they are good enough to handle the street/strip use.