[atmosphericM]

I was actually curious and just did a little research and, lo and behold, the E9x "resonator" is actually called the "center muffler" on parts diagrams, literature, etc.

So there you go.

It isn't a resonator. It muffles and makes the exhaust quieter.

Now to get the PSA out there so that everyone in the E9x scene stops calling it a resonator. (lol, yeah, right...)