Recently upgraded to a flowmaster 40 to give my 2013 Ram a lil more sound. Unfortunately the interior Can noise at times is too say the least annoying and at times unbearable. Particularly for those in the rear
Does anyone have any suggestions on what I can do to help reduce the interior noise from the exhaust without having to go back to something stock.

 

Different muffler is about your only option..... Not necessarily stock, but, quieter than the flowmaster.