I just changed my muffler in a Garage, its address is 6000 St. Jaque.
I changed the middle and the back section of the exhaust pipe which cost me $310. I am not sure if it's a good price. You can compare with other Garage.
today i take car to the garage near my company,i check it myself when it be lifted.i amright ,just leak around the end of muffler.after welded it,it's fine.40$,i think it's good.
so later we should check everthing very carefully don't believe what the guys who working in garage
maybe we can save more money