Conversation Between Renaissance.Man and Innkeeper411

I have the same question that bonemechanic had years ago. I have a 2006 CTTS BMC filters, iPad plenum, EVOMS diverter valves, HHR 3" secondary cat bypass, 3" midpipe and muffler.

First I am trying to decide if primary cat bypass would be too loud, then a tune. I asked Mr Haney his advice and he said basically after bolton's I am on my own since no one has really tested. What would you do next and then after cat bypass or not what can I do? Thanks