Beware any motorcyclist coming to Maine for a vacation etc. A newly revised state law went into effect July 12th, basically giving the LEO's a free hand in summonsing bikes for what they believe to have a loud exhaust. It is completely up to the police to decide what is loud. Some city police have been summonsing operators of motorcycles that do not have stock exhaust, after following them for a while, and then stopping and asking. Possible violations of the 4th and 5th amendments, but that's another issue.