By definition, a modified exhaust is not of the type installed at the time of manufacture, does not meet the manufacturer's specifications, does not comply with manufacturing regulatory standards, and is the root cause of excessively loud vehicles. One of the major sources of excessive and unnecessary noise is from motorcycles equipped with modified exhaust systems. Loud noise also damages communities, reduces property values, and denies individuals the right to peacefully enjoy their own home and property. High noise levels are associated with hearing loss, heart disease, sleep deprivation, chronic fatigue, ringing of the ears, and aggressive behavior.
Excessive noise is a major public health issue. Guide to Modified Exhaust Systems: A Reference for Law Enforcement Officers and Motor Vehicle Inspectors is a slim, portable manual for law enforcement officials, motor vehicle inspectors, prosecutors, and legislators, as well as all citizens who desire peace and quiet.
