I tend to feel about aftermarkets grilles similarly to onehundred80. If I were going to do an upgrade, I would get the chrome overlays for the Crossfire stock grille. I've seen this on Valk's Crossfire and it is fairly sharp looking.

But if I were to purchase a billet-style grille, I would consider something like these. Comes in black version, also. Don't have any 1st-hand experience with this design, but I like the design of this grille compared to other billet grilles out there. Hopefully, someone with 1st-hand experience with this design will chime in on your thread. (Note: I recall that fitment with this billet-grille was an issue for another owner.)