I am considering putting a 5050xl aero turbine muffler on my 2008 Travel Supreme 400 ISL cummings. Brazel RV out of Oregon was at Quartzite, Ariz., and almost sold me on one. Promises of more power and better mpg.
Has anyone had this muffler installed on their coach, and if so, what are your thoughts ... mainly regarding mpg and power? And, how loud was it (I like quiet). Also, they said that an AFE air cleaner in combination would help immensely. Any feedback would be greatly appreciated. Thanks.