Hey thanks for the impute. I'm still leaning toward the bumper black however, worse case, I decide to go back and go with my original thought of the Baja silver
The JDM HID ballast on the back side of the lamps are slightly larger than the USDM and so you need to cut out some of the structure on the car behind where the lamp assembly fit into (ie make the hole bigger on the inside).
Not a bolt on for sure: first I had to dremel out on the lamp socket on the car body for to allow for the Rev-D lights (not a biggie) and then splice the JDM plugs into my USDM wires. I didn't notice until later that there's a gap between the lamps and my USDM hood (the JDM lamps have a little more of an aggressive angle) however the rock guard hides the gap well.