I don't know but of the few different borla systems I've had they need about 1000 miles to break in and kinda burn some of it out. My ISF was almost disappointing in sound at first but after it burnt out the oil and seated in it had a great low tone to it as well as nice WOT. Just something to think about. In 1000 plus miles do another video. Its more of what its going to sound like.
Ya it should get a but louder. I was really surprised that it was so quite. and its the sport one too... lol