I used the search button but did not find enough info. I have had my car for a week and the stock exhaust has to go. I want a deep loud sound and have decided to get a prochamber. I now need to decide on the catback. I do not like the sound of either magnaflow kits, so I am looking at flowmaster american thunder or mac catbacks. I love the flowmaster sound and can deal with the drone. How does the mac sound compare to it?