It shall be unlawful for any person to operate a motor vehicle which shall not at all times be equipped with a muffler upon the exhaust thereof in good working order and in constant operation to prevent excessive or unusual noise; and it shall be unlawful for any person operating any motor vehicle to use a cutout, bypass or similar muffler elimination appliance.
(1983 Code, § 5-3-17) Penalty, see § 91.99