Every motor vehicle shall at all times be equipped with a muffler in good working order and in constant operation to prevent excessive or unusual noise. No person shall use a muffler cutout, bypass, or similar device upon a motor vehicle on a highway. No person shall modify the exhaust system of a motor vehicle in any manner which will amplify or increase the noise or sound emitted louder than that emitted by the muffler originally installed on the vehicle.
(Prior Code, § 15-302) Penalty, see § 10.99
Statutory reference:
Mufflers or other noise-suppressing systems; prevention of excessive or unusual noise, see 47 O.S. § 12-402