I had a pissing contest today at the muffler shop. Told the guy I wanted the resonators removed, dropped the car off this morning and hitched a ride to work. 30 minutes later they call and say my car is done. I go back to the shop and the car is sitting outside so I decide to take a quick peek under the quarter panel as I am walking in and I see that the "resonators" are right where they have always been.
I go in and ask why are the resonators still on the car and the guy launched into a long explanation of the difference between what a resonator is and what a muffler is. I told him that everybody on the forum said the things under the quarter panel are resonators and the mufflers are further forward. Of course, my dork factor went up a few notches in his eyes because here stands a customer who gets his information off the internet instead of believing a trained exhaust professional. After a little more back and forth he convinces me that what he took off were resonators because there was very little baffling at all in these components, they were more or less a straight through pipe.
For $40 I guess I can't complain too much so I head back to work. The car sounded very good with whatever you want to call the piece he removed. A little louder than stock when I romp on it but overall not too bad at all.
So I get back to work and hit the Magnaflow web site thinking I can find a muffler for my car and go back and show him how wrong he is. What I found was that they have a "axle back" system that replaces some of the exhaust tube and the 2 items under the quarter panel at the rear of the car. AND Magnaflow calls these components ... wait for it ... MUFFLERS!
So now I am having a WTF moment. On the up side, I only spent 40 bucks and few minutes of humiliation at the local muffler shop plus the car sounds pretty good to boot. On the down side, I have no idea if the exhaust pieces that everybody on the interwebs is calling a resonator is really a resonator.
Edit: Now that I think about it, the best course of action for anybody contemplating doing this mod would be to point to what you want taken off the car and not try to call it by any name.