I personally think every thing should be green. even the flares. I was contemplating painting my flairs black when i painted my car. When i painted them body color and bolted them on i couldnt of been happier. In my opinion it makes it look much more like the flares where supposed to be there, and not just thrown on after. I do think the hood vents could be a flat black or even better probably a graphite color. But i would say paint the flares green and then its easy to paint them black afterwards if you dont like it.