I got my Magnaflow 14805 exhaust installed yesterday. It sound pretty good.
I did'nt got the chance to try it on the road cause my XFire is store in my garage for the winter.
My brother did the welding for me.
Here's the sound clip of the 14805:
YouTube - Chrysler Crossfire Roadster w/ Magnaflow 14805
And off topic.. here's the sound clip of my brother car (Fiero with V8 350ci swap engine

). I sold that car to him... damn! The Fiero will hit the road next spring after a few years sitting in the garage.
YouTube - Fiero V8