Mufflers and Noise Control

No person shall operate a motor vehicle on a public highway or street unless the motor vehicle is equipped at all times with a muffler or mufflers in constant operation of a length and size or of sufficient capacity for the motor and exhaust system to prevent the escape of excessive, unnecessary or annoying fumes or smoke, and excessive, unnecessary or unusually loud noises.No person shall operate a motor vehicle on a public highway or street with a motor or exhaust system which has been altered or modified to such an extent that the noise emitted by the motor and exhaust system thereof shall be deemed excessive, unnecessary or unusually loud, or equipped with a dummy muffler, cut-out, bypass or other similar device.No person shall accelerate or "rev-up" the engine of a motor vehicle on a public highway except under normal or emergency conditions, and in no event shall a person accelerate or "rev-up" an engine primarily for the purpose of emitting excessive, unnecessary, or unusually loud noises. The burden of proof rests upon the operator of the motor vehicle that the unreasonably loud or excessive noise was made under normal or emergency conditions.The making, creation or maintenance of excessive, unnecessary and unusually loud noises mentioned in this Section shall be deemed detrimental to the public health, comfort, safety, welfare and prosperity when the noises are prolonged, unusual and unnatural in their time, place and use.