Look at my grille in my Sig. Sine mine is a Limited they come with a Chrome Grille. Since I don't like chrome I bought a Laredo Grille that was the same color as my Jeep and swapped it on.
Since you have an 08' you HAVE to buy a Black grille from the year's 08-10.
I prefer you to buy an 08+ Black Grille instead of painting it with Plasti-Dip. JMO
Post up in the WK Exterior Section and lots of people will help!
Here's a Picture (Davy27):