exactly, this is what i've read is the best defense for this sort of thing; ask them if they can tell you the decibel level of stock and how that compares to the current one.From your link:
"31. Mufflers and exhaust systems. Prevention of noise. Every motor vehicle, operated or driven upon the highways of the state, shall at all times be equipped with an adequate muffler and exhaust system in constant operation and properly maintained to prevent any excessive or unusual noise and no such muffler or exhaust system shall be equipped with a cut-out, bypass, or similar device. No person shall modify the muffler or exhaust system of a motor vehicle in a manner which will amplify or increase the noise emitted by the motor or exhaust system of such vehicle above that emitted by the muffler or exhaust system originally installed on the vehicle and such original muffler and exhaust system shall comply with all the requirements of this section."
Says must be "adequate muffler and exhaust system," and you can't make it louder than stock. Now how is a cop going to write that ticket not knowing what decibel level the stock Honda exhaust emits? He likely isn't going to write one.
I don't know how car mfgrs get away with servo-op cutouts.
But the point about the exhaust valves is exactly what i'm wondering. My dad's cayman comes stock with an illegal exhaust, and so does the cayenne loaner he gets during services. Porsche, Dodge, Ford, GM, Aston Martin, Ferrari / Every company that has made a sports car in the last 2 years has broken the law according to this, why aren't they being sued?
Like Dapper said, im sure this is just a tool for the police to "legally" infringe on the rights of stoners and hoodrats. But the selective enforcement of this is really infuriating. Car enthusiasts need our own political action group.