Right the query I have here is looking on the all of ebay you see Akropovic Exhausts which have been taken off Gixxer 1000's etc, 600's etc. If you could get an exhaust link pipe made (there's an exhaust manufacturer in my area) whats to say tou couldn't use one of these exhausts. Mines a Tuono Racing 53 model with single pipe but could you use one of these pipes or an arrow can of a Gixxer. Does it matter what size engine it comes from or am I being a little naive here. Peopole seem to core exhausts so why can't we use exhausts for other bikes??