can any one tell me what the difference between a ttr600r 2001/2002 and a ttr600re 2005 ? other than the electric start what I want to know is the exhaust seems to only be available for bikes up to 2002 and from what I see picture wise they look the same to me is their any difference to the exhaust as standard ???? .I need a can on it its so quiet don't have the enthusiasm to modify would rather it just fitted thanx minted