I am not sure which way I'm going to go. All i know is that the stock exhaust needs to go. I had Flowmasters on my Dakota and the tone was perfect, but the volume was lacking. It was good for the truck but on the Challenger I need more. This car has to sound mean. I have not heard the new Flowmaster super 44's on any vehicles so I don't know what to expect... I am waiting to see I guess.