I have a 02 gmc sierra with the 5.3 excab short box. What I want to know is has anyone used the stock exhaust manifolds and cats with a y-pipe in place of the muffler and duals out the back. Will it sound good or do I need a muffler. I like deep low sounding exhaust and since my muffler is rusted out I am looking for opinions.
Thanks, Tony
Thanks, Tony