Good luck with getting any extra power with a can on a modern bike. The days of plugging in a dynojet kit and a race can and getting gains across the whole rev range are over. Bike manufacturers are very very good at producing legal exhausts, meeting emission regs but at the same time wringing every last bhp out of the engine. So much so it's getting difficult to get any significant gains over the stock exhaust without spending significant money. And in actual fact most cans will give losses, not gains, despite what your "arse dyno" tells you!
If you want big gains for little outlay, get a MK1 Bandit 1200. Enjoy the torque from the stock motor, then fit a Dale Walker stage 3 kit, ignition advancer and can, and get another 20bhp. Unfortunately you'll also need a better shock to make proper use of all the extra!
Rider pleasure aside, I do maintain that loud pipes make riding safer in town though. Yes it is legally dodgy and undoubtedly antisocial (not getting into that argument here), but having commuted to London year-round for the last 15 years, I know what works.
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