Header, Intake, & Exhaust - Custom Exhaust

Wat would be the difference beetween going 2 a muffler shop and getting some mandrel bent 2 and a quarter inch piping and buying an aftermarket muffler compared 2 spendingt a few hundred on a cat back.? I couldnt find any posts about this. Thank u

there isnt really any difference if the cat-back you are buying is the same diameter. So as long as the muffler is high flow and the diameter of the piping is the same, you will get the same results. Make sure its mandrel bent either way you decide to go.