Okay I've never been to a muffler shop and I don't know how they charge people for work, but it's Sunday tomorrow so nothing is open, that is why I am asking this.
Basically I got a 1973 Mustang
with a duel exhaust. Both pipes are 1.5 inchs from the end of the headers to the back. The header collector is 3 inchs and I want the entire exhaust converted to 3 inchs from front to back.
Please give estimate on how much I would be looking to pay at a shop, or and how much I would be looking to pay if I just did it all myself?