Flowmasters AT + off road H pipe. I had flowmasters + an H pipe two years ago and the drone was killing me, changed the mufflers after 2 weeks. I miss the sound now and was thinking about going to Flows with off road H pipe. There is a video on Youtube of that setup and it sounds killer. I know its loud, but I am curious how loud it is on the inside and how bad is the drone? I'm hoping maybe adding an off road H pipe will produce less drone since it will increase the flow?