I just (like 2 minutes ago) ordered a set of these Kakumei replica JDM Grille Pieces for $25 plus shipping
so, when they arrive (should be some time next week) I won't need my stock ones, they're silver so you'd have to paint, but if you can't find any white ones PM me and let me know.
or, if you like the pic above, you can buy the real deal, painted in your color for $45 plus shipping HERE
only problem with that is it says it's a special order, so it may take a while to get them.
hope this helps!