I recently bought the AWE exhaust and had them install it at their shop in Horsham, PA for my Ram. They went ahead and pulled the Corsa catback off. Their shop is EXTREMELY nice, very clean and the employees were all friendly. The installation was very well done. The welds are top notch and the pipe looks to be of high quality, and the fitment is perfect. They weren't kidding on that guarantee. The sound is deep and the cold starts are aggressive, it truly does have an amazing sound.
The downside that I've noticed is that there is constant volume in the cab while you're driving. If you let off the throttle, it goes away, but as you're cruising down the freeway at 60-70mph, you WILL hear this exhaust all the time. Unfortunately, I was under the impression that it was only loud when you lay into the throttle and goes dead silent when cruising, this is not the case. My Ram did not come with the resonator from the factory on the mid pipe. If it did, it would probably drop the volume down a little but nothing substantial.
At this point, I'm not sure if adding a Vibrant Ultra Quiet resonator will do the trick or not.
Of course take my opinion with a grain of salt as sound is very subjective to everyone, differently.