Sound Great. There is a slight drone around 2000rpm as the motor loads but then it goes away. I even have MDS(4 cylnder mode) on mine. There is no drone at cruisin highway speeds. I got the self amplified TA850c 50W Bazooka and to be honest with you I can't tell when its on because I have it on a switch. I'm gonna go up to a 100w or 200w amp.
i always thought pypes were a bit on the raspy old school side. Im still a fan of the stock exhaust or magnaflow or borla..Its already a loud engine. Not dissing they do sound different on the challengers