The City of Philadelphia has passed Bill #080722 which prohibits the any and all aftermarket exhaust systems on Motorcycles.
http://www.hallwatch.org/councilnotices/em...2453767144/view
Note the wording of the definitions for illegal exhaust systems.
"(a) Aftermarket Muffler. An exhaust system that replaces the factory
installed muffler."
Its any exhaust, not just some bomb loud cruiser pipes, but any system.
Also there is no noise standard for any system, so how it can/will be enforced is a good question. But it also means that you have no choice but to replace your exhaust with the overpriced (and often underdesigned) factory system. If you cannot replace it with a factory can (lets just say you have a 91 gsxr750?), then what do you do?
I'm going to cross post this on several other list/forums, but if you don't see it, please post it yourself.
We have to spread the word and get our mass to fall on this like the twin towers did.
For the record, I'm not against limiting the noise of vehicles but this is only motorcycles, and it is not reasonable, its just if it is not factory it is not legal!