7-1-4: VEHICLE EQUIPMENT GENERALLY, MUFFLERS:
Every vehicle operated upon the streets of the City shall be equipped as required by law. It is unlawful for any person to:
   A.   Operate a vehicle upon a street of the City which is not equipped as required by law;
   B.   Fail to use such equipment in the manner required by law, or to use it in a manner prohibited by law;
   C.   Operate a vehicle which has equipment prohibited by law upon a street in the City; or
   D.   Operate a vehicle which has an internal combustion engine without a suitable and sufficient muffler. No muffler cut-out or exhaust or vacuum whistle shall be used on any motor vehicle while operating in the City.
(Prior Code § 15-103)