I currently am running headers with 2 1/2" dual exhaust on my 81 with a 350. I am using Thrush turbo mufflers located under the rear seat area. The noise is kinda loud, so I was thinking of changing to a system like this https://www.jegs.com/i/Dynomax/289/89021/10002/-1 Anybody have any experience with placing the muffler between the axle and gas tank? Did it help with noise reduction? Ease on installation? Thanks in advance.