Where did you get the center image from, where there are two pipes in the middle of the NPP?
Edit
So I found the image sources you used, the center image is confusing as the piping is different in each photo. I think one of them is the stock and the other is whatever they were testing. I am curious on this now as I had a ZL1 exhaust on my previous v6 and it felt deeper/more growl and while my SS is great I have a little missing so to say.
I'll try to find what TV show those images are from to see a proper answer
https://www.camaro6.com/forums/showp...7&postcount=28
https://youtu.be/_alMn3ha5MA?si=fOQ_4WOINymH8yy-
Edit2
Found the show: