Flowmaster 70 vs 50 HD Sound Comparison

I had to modify the 50 HD to fit by removing the ends of the muffler and swapping to a center inlet and offset outlet. This is a 2004 Jeep grand Cherokee with a V8 with Doug Thorley Tri-Y Headers, Magnaflow Hi flow Cat and 3“ Mandrel Bent Tailpipe #martinbuilt #jeepgrandcherokee #flowmaster