a slight detour on the subject - i looked a while ago regarding road use exhausts and noise, it seems to be pegged at 96db but can't find if thats at a particuler rev range/speed. i have bs/eu stamped road/race cans on at the moment with removable db killers and with the killers out according to my phone app (probably not accurate) at idle they read 83db and at 2000 rpm they are 89db at 1mtr . obviously they get louder when the taps are open.
does any one know what the parameters are for testing noise levels ?