Mufflers 46
(1) A motor vehicle propelled by an internal combustion engine shall be equipped with an exhaust muffler consisting of a series of pipes or chambers which ensures that the exhaust gases from the engine are cooled and expelled without excessive noise and without the emission of any flame or sparks.
(2) No person shall drive or operate a motor vehicle propelled by an internal combustion engine when the muffler with which the vehicle is equipped is cut out or disconnected from the engine.
(3) No person shall drive or operate a motor vehicle propelled by an internal combustion engine equipped with a muffler from which has been removed a baffle-plate or other part.
(4) No person shall drive or operate a motor vehicle propelled by an internal combustion engine equipped with a muffler, the exhaust outlet of which has been opened or widened.
(5) No person shall drive or operate a motor vehicle propelled by an internal combustion engine equipped with a muffler or exhaust system to which is attached any device which increases the noise of the expulsion of the gases from the engine or allows a flame to be ignited from the exhaust system.
(6) This section does not apply to a school bus having a capacity of 24 or more passengers.
RSA 1980 cH-7 s46
Bumpers 62
(1) A passenger car shall be equipped with a front and rear bumper.
(2) No person shall install or alter a bumper on a passenger car unless the design of the bumper is equivalent to, and the bumper is mounted in substantially the same manner as, the bumper installed by the manufacturer of the passenger car.
RSA 1980 cH-7 s62
Height of bumpers 63
(1) No person shall alter a passenger car so that the main structural component of a bumper is more than 50 centimetres or less than 40 centimetres above ground level when the passenger car is unloaded.
(2) A bumper that has at least 6.25 centimetres of projected vertical facing within the height restriction referred to in subsection (1) when viewed in elevation is deemed to comply with that subsection.
(3) For the purpose of subsections (1) and (2), components that are commonly known as bumperettes or overriders are not part of the main structural component of a bumper or of the projected vertical facing.
(4) Subsection (1) does not apply to passenger cars manufactured before April 1, 1976 but no person shall alter such a car so that the bumper is more than 10 centimetres higher or lower than it was at the time the car was manufactured.
RSA 1980 cH-7 s63
Offence 64
A person who, on or after May 1, 1981, operates on a highway a passenger car that (a) is not equipped with bumpers as required by section 62(1), or (b) is equipped with a bumper that does not comply with the requirements of section 62(2) or 63 is guilty of an offence.
RSA 1980 cH-7 s64