When I started running boost I was getting major backage in my exhaust system so I went with true duals. Please watch the entire video and you can see my entire exhaust layout. I even removed the spare and the bumper so the system is more visible.
http://www.youtube.com/watch?v=eTmNzBD7u2I

 

no crossover....ok

 

No X-pipe or H-pipe but true duals all the way.

 

I would expect the muffler to be much more restrictive than the resonator. I suspect it would still be pretty quiet with the resonator removed too, if you've seen the size of the muffler they put on these you're not going to get much sound at all without removing it.

 

There I wish there was a way I could just un bolt it to hear if I like it

 

I removed it all from the Y back and went with a Cherry bomb turbo and turned out before the rear wheel. I noticed a difference, but I should've gotten the Cherry bomb pro for sound. It's still high-flow, and would be beneficial for the 3.7.
+in+out= hp.

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