When I stopped at Ma's Cycles, Fargo, ND on my trip back across the great american prairie, the guy there indicated aftermarket pipes should also have O2 sensors to be properly remapped for bikes (newer ba/sm) with fuel injection. I failed to ask more detail regarding these sensors.

Does anyone know anymore about this?

jh

"It's not what I say that's important, it's what you hear" Red Auerbach