used to have one on my r1.. was bought by a previous owner.. i thought the build quality was good.. although the can was far too short to achieve good fueling with, i had no quams otherwise... sound was excellent aswell.. delkevic are another cheap brand that get overlooked quite a bit, i've one of their cans on the rsv atm and it's still like new after 8 months of use in all weathers.. £120 for 3/4 length stainless can, you can't go far wrong with that... it caught my eye originally because i didn't want a full length can but i didn't want to go too short either, and this fitted my specification perfectly..