I dont think they come painted. but the black doesn't look bad. and I'm sure it would look better on your car anyway since its grey. They don't look bad at all. My girlfriend and like 6 of my friends haven't even noticed I put them on. For the front ones you just remove 2 screws and put the guard up and screw it back on. The back are a pain in the ass though you do the same thing but because you cant turn the back wheels its really tight. Would be a lot easier if you can take your wheels off but if you cant it can be done with them on its just not fun. Took me about an hour and a half. Could be done much faster if you know what your doing though lol.
http://rpidesigns.com/shop/item.aspx?itemid=1815
I can get some pictures later this week for you.