Line-x does color match? How cool it that!!! And here I thought it was only black.
I agree with Bebe....go for the boulder grey color. That will look sweet! I think I would still got with the black on the chrome grill though.....only to carry out the black on the rest of the rig (mirrors, roof rails, etc). It'll bring it all together.
Post pic's after you get it done. I've got a grey 3 too, and I'd love to see how it turned out.
Good luck with it, which ever way you go!
