Well I finally gotten most everything done to the exterior that I have wanted to. It has GT front and rear bumpers, GT side skirts, dual GT exhaust, 18'' Boyd Coddington Smoothie II's, BF Goodrich KDW 2's, Roush Hood Scoop, SSE Ducktail, AEM CAI, and Woodview Dash Kit. I would just like to do one more thing to the exterior, but I'm not sure what. Suggestions? I've thought about a black out panel for the rear. Here are some pictures.

First Picture is what I started with:

 

Someone forgot the pics
If you wan't one more thing, theres always that blackout you mentioned or even rear and/or 1/4 louvres