235(1)The driver of a motor vehicle that is being operated on a highway shall ensure that the motor vehicle is equipped with a muffler and exhaust pipe or pipes in good working order and in constant operation so as to prevent excessive or unusual noise, and no person shall operate a motor vehicle equipped with a muffler cut-out, by-pass or similar device.

235(2)The driver of a motor vehicle shall ensure that the engine and power mechanism of every motor vehicle are equipped and adjusted so as to prevent the escape of excessive fumes or smoke.