Ecstasy

ive heard from a few people that the prochamber is quieter then regular h's. i have an o/r h on my cobra now and it seems around 3,000 rpms it loses its tone. ive heard a few videos with the prochamber and it seems that they are a little quieter then the or x's. but then again it could just be the camera, my question is does anybody have any good quality vids with the off road prochamber? because im debating on either the bassani o/r x pipe or the mac o/r prochamber and im completely confused, but as of now im leaning towards the bassani o/r x.