Congratulations on putting together one of the most comprehensive, detail oriented build and tests I have ever seen. I have been hanging on every post waiting for the conclusion. I hope as it evolves we will see some dyno numbers for reference.
The DB meter is a nice touch- I don't know why we don't see more of these kind of videos.
Exhaust vendors take note- This is how you introduce a new product. While I appreciate the artsy-fartsy pictures we get, I think that most of us would agree that quality videos comparing your product to stock and quantifiable data like DB ratings vs. stock are much more compelling.
I loved this build!!