I'll play this by ear then!!

Db's will be somewhat misleading I think, due I think to the low frequency of the bigger bore engine.

My 600RR track bike ran a straight through race sytem, although I did have a baffle in case the sound tester was having a grumpy day and that ran @ spot on 105Db without the baffle @ 5,750 rpm I recall. It was very loud on full chat and sounded wonderful, not unsoiciable like a revvy moped!

My K12S with open Akra' was over 100Db and sounded louder than the 600 - am I making sense?

The XT states under the seat 94DB and with the standard pipe/inlet I'd say that it's more in the high 80Db range.

When I fit the X Racing can, I'll decide if it's trouble without a baffle and if I think it's OK - it's out, if not it'll stay in officer. The air filter change will make a fair difference too, as will not pulling 7k through the villages - but more gas flow in and out is the right solution..

P.S. Can you get the same software for the Blackberry?