What kind of money could I save by running dumps? A new catback is at least $500. How do you go about getting dumps? Do I just go to a muffler shop and have them weld my flowmasters into some piping? I figured I could save a little money and a little weight by going the dumped route. The only thing I don't like about the dumped set-up is not having muffler tips sticking out the cut-outs on the bumper.