There are several sound clips on the titan forum to listen to. I am not the first to have the Volant/Gibson setup, but from my research the ones that do have been very happy. Add me to that list, not an overbearing sound but one that lets people know you have done something different to your ride. It will turn heads. I am not sure about the other exhaust systems, I was worried about them being to loud or having to much drone. I have driven a titan with the a dual magnaflow exhaust and it was louder than mine, it was chipped as well, and had the Volant. I have never had a chipped vehicle and I loved the Titan, but as I stated earlier mine has the same hop to it that the Titan had and I just love it.