Single exhaust

Has anyone removed the standard exhaust and fitted a single system in it's place? Seems to me that you could potentially save another couple of kilos by only having the one muffler / piping... I'm on a mission of saving weight without emptying the bank account on carbon fibre goodies.

Pros:
Saves on cost of cans
Saves weight
Might sound wicked

Cons:
Have to make sure it doesn't hurt the look of the bike
Can has to be able to flow sufficient volume
Would need a remap (no big deal)

I heard a VTR SP2 Honda twin with a single system the other day. The note was a fair bit higher pitched and tighter sounding than the classical V twin throd. While it sounded different - it was a fantastic sound !

Anyone tried this?

I'm in the Centenary suburbs. The bike's still not registered because I'm having the seat modded to single seat specs, and I haven't had time to get away from work to get the mod plate.... Driving me crazy!