First of all, my first post to this forum. Have read a lot and was glad to be given the opportunity to join. So now my question(s): I just bought a 2015 Challenger RT. I had the opportunity to drive many of the 70-73 Challengers, Cuda's and other Mopars and muscle cars. I really like my Challenger but would like to have it sound more like a 70 440 RT. I know it will never sound exactly the same, but something close would be great. I have read countless articles, and watched dozens of YouTube videos on all sorts of catback systems, Magnaflow, Corsa, Bora, etc. etc. etc. I am totally confused as to which will produce the sound close to what I want. Some of the videos have great audio, others not so much. A lot have to do with someone starting a car and revving it...makes it hard for me to get a good idea of how it sounds. So I guess it boils down to this...if I am looking for something that comes close to a 70 RT 440, not any louder as I don't want to get the neighbors up in arms, what would any of you suggest? Thanks in advance.