duster grille blackout

I did a search and read and read, i understand the process and why it was done.
I just got my car back from the body shop and want to black out that area, not sloppy like the factory did it, my question is what sheen, and brand of paint do you FABO experts use for this.
I would like to hear from the guys that actually did this before, i would like to use a spray can and i want it to look factory only nicer than a guy shooting it from a pit... Thanks..Rich