With respect to pipes; most everyone that I know changes their pipes out with aftermarket pipes too. The EPA (Federal Government) actually prohibits tampering with emissions (pipes) on all motor vehicles. The law is rarely enforced. Mostly bikers get stopped and ticketed for noise law violations. Under the new EPA law, any shop found to be installing after market pipes can get hit with heavy fines for each occurrence. We will see how this works out in practice. I know many local shops have received threat letters from the Feds.

In California there have been rules for years that new motorcycles, cars, etc., must have a certain maximum emission standard. The EPA has adopted some of these rules for motorcycles. Jesse got busted for not complying with the manufacturing new motorcycle rules from what I know.

Norm