I have a AA Signature Exhaust, installed on my car by AA in Miami.
Great looking and sounding thing, but it's too much drone at low RPM for my liking. If it were me I'd be OK with it, but my wife and 7 month old like it less....
Andrew @ AA claims that for some reason it droned more on my car than others they had done.
I'm interested in trading it for a Rogue Ikon, or something similar value. (Used PE?) I have about 4K miles on it since install.