Don't know if you've followed my 'quest' through the exhaust installation lately.
In your poll, I voted for the resonator back.
Definetly check out this thread for information I found re the resonator:
I got the MagnaFlow and a little more 'resonance' than I wanted.
My year of SSE doesn't have a factory resonator, so, I'm planning on putting in a substitute in the way of a long glasspack.
If that doesn't do it, I don't know what will.
This exhaust thing seems to have a lot of people curious and some of us are experimenting with different approaches. I know I am.
There doesn't seem to be a magic formula for getting not too much noise and a bit more power.
I've got a bit more power and too much noise at certain rpm, but, it'* not a drone by any means. Most of the time the exhaust sounds very good.
I gotta get the substitute resonator in to quiet it down a bit and hopefully get a little deeper tone.