AWE just released an exhaust for the 2.3l & 2.7l Bronco. It seems to give it a deeper exhaust note and small performance gains. It will be interesting to see what AWE can do with the Bronco Raptor exhaust.
Since the Bronco Raptor is going to come standard with a valved exhaust system it's going to be hard for me to switch it out. I guess I'm getting old enough where I like being able to have the exhaust go from mild to wild with just the push of a button.