I just bought a 04 XB12S with 2000 miles on it. It has a Latus pipe and a K&N filter otherwise stock. I asked the previous owner if he changed the ECU or had it remapped and he did not do either. The exhaust pipes are discolored from the head to about halfway to the collector. I suspect it may be from the bike running lean/hot. The guy put 900 miles on the bike since the Latus/K&N were installed. Since I am new to Buells, what is the consensus, Race ECU or remap the stock one? I live in Fairfax, VA, if I need to remap, any suggestions of where I can have it done?