I just purchased a 2016 R1S that came with the competition works GP three-quarter exhaust. It is extremely loud as I am running no baffle. I would like to switch to the Austin racing if that would be even louder. Austin Racing website says that ithat theirs is 105 dB and when I called competition werkes they said they thought there’s was around 115 but they weren’t sure ? but I have always heard Austin Racing is the loudest so I’m a little confused ?