Should be less than 94db, if I remember correctly, is there a sticker on the bike stating db's @ RPM, because if there is they'll most probably use that.
Found this link in an earlier post by Bano http://www.ntc.gov.au/filemedia/Reports/NatStatExhaustNoiseTestSept2006.pdf
http://forums.whirlpool.net.au/archive/1879460 While doing some research on your point I came across the above thread. It may have started as a bit of a troll, but f**k me, the lemmings jumped on the bandwagon real, real quick. Scary shit! Please read...entertaining if not frustrating.
* It's c**t's like these that cost me time and money.
