I have just been looking at the carbon cans in the market place! apart from looks whats the diffrence to performance if you get a short can as apposed to a long one, i thought it was all to do with the chamber? can tell me why? or is it purley LOOKS. Ta!"

If I remember correctly, short and big inner diameter give you top end power, more top speed. Long and smaller diameter give you better acceleration and torque.

i always thought it was down to the chambers and the cans only handled noise reduction
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If you dont like the way that i ride.....Stop trying to keep up!!!!!

Mostly, but the cans and the length of pipe from chamber to can does have an effect too.
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MC21SP Plaything
BMW F800GS Bumblebee
Triumph 9551 Daytona Big boys toy
FJ1100 Sporting relic
GTS1000 oddball

Im thinking of buying some carbon cans as my new tyga ones are alloy, Nothing wrong with that its just that my plans may change, i originally wanted to do a AXO bike like they have on the site, but there is a few around now so im gona get a diffrent paint job done, (nearly decided but not 100%) if the bike comes back and it would look better with carbon jobbies i want to buy some, So i guess as long as they are the same length and bore i shouldnt have to re jet or get it set up again. of course ill check it but was wondering as the short ones look cool!