| To be quite honest Glyn, most pipe and chip options make very little difference to "performance" apart from added noise. The noise itself can convince you that the bikes making more power and going faster.
I would suggest that most people swap cans just for more noise.
Now fancy cans along with other engine mods such as big bore, big valves, hairy cams etc is a different matter! | 
23-Aug-2005, 21:25 
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