22.1111 Muffler and exhaust systems.

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(a) Any motor vehicle on a highway must at all times be equipped with a muffler to prevent any excessive or unusual noise.

(b) No muffler or exhaust system may be equipped with a cutout, bypass, or similar device, and no person may modify the exhaust system of a motor vehicle in a manner which will amplify or increase the noise emitted by the motor of such vehicle above that emitted by the muffler originally installed on the vehicle.

(c) All exhaust pipes must be parallel to the ground and the vehicle, or vertical, and the exhaust from such pipes may not be directed to the side of the vehicle.

History: 1972, PL 12-65 § 1.