I did the valve controller and 3rd cat delete and can highly recommend it, it sounds great! I used to switch modes between open and OEM but now don't even bother, i just leave it open the whole time. You can pretty easily control the volume with your right foot :)
What i do wish though was that...
That's great - any chance if you can see if my VIN (ends RHB12906) is on there? It was "on the water" May 9th is all i know, and isn't in the list of VINs that arrived 5/13. Thanks!