Has anyone ever heard of someone making a JBA cat back exhaust for a 5.0? I don't think they make a cat back system from the factory, and I was wondering if it was somthing worth doing. I've seen their headers for the 5.0, and seen there systems for other cars, it sounds pretty good to me, but I can't find anything for the 5.0 other than their headers, which look great, but I'm looking for a cat back.