So finally go the prochamber on over the weekend....woke the car right up and gave me the sound im after.
Now keep in mind, I am a vert, so there is never going to be any drone with the top down. When the car is WOT, it's pretty loud. Think it sounds great.
I am not throwing a CEL, I think the rear 02's are turned off in my tune anyways.....so I'll let you know what differences in numbers I get.