That must be nice. You see I live in a town called "Fredericton" where within city limits, literally every shop is predatory and out to suck you dry. One shop told me the entire manifold/flexpipe had to be replaced, direct from Mazda to the tune of $2500 (they even warned me the manifold bolts might snap off, so it could end up costing me a new block). The next shop said $1500 because they could do a little welding.
I took it to a garage out by my parents house who said the issue wasn't even up near the front, it was with the actual muffler towards the back of the car. I know this old guy is legit, he's worked on both my parents cars for a while now (2005 Subaru Forester XT and a 2012 Fiesta SES) and saved them hundreds also. My bill from this guy will be less than $500. I hate this piece of s*** town.
So are you actually telling me a generic muffler could be installed? Because it's going to take over a week for the part to arrive from Rockauto.