Nope, the core support "grill area you mentioned" is all body color as well, just my phones camera doesn't take the greatest pics on sunny days. But if you look back in the thread you will find plenty of pictures that show that area.
The tips are a little bigger than factor tip openings but they aren't ubnoxiously large. I slid them on the pipes of the car real quick to get an idea of how they would look and they look right at home. And they actually changed the tone of the exhaust quite a bit too.....sounds really good!