(a) No person shall drive a motor vehicle, including a motorcycle, on a highway, including residential streets, unless such motor vehicle or motorcycle is equipped with a muffler in good working order and in accordance with manufacturer's specifications and in constant operation to prevent excessive or unusual noise.
(b) No person shall use a “muffler cutout” on any motor vehicle upon a highway.
(c) It shall be unlawful to sell or offer for sale any muffler without interior baffle plates or other effective muffling devices or to sell or offer for sale any “gutted muffler,” “muffler cutout” or “straight exhaust.”
(d) The provisions of this section shall only apply if there is not a violation of § 4311A of this title.
Structure Delaware Code
Chapter 43. EQUIPMENT AND CONSTRUCTION OF VEHICLES
Subchapter I. Equipment Requirements
§ 4302. Projections from periphery of tires; exceptions.
§ 4303. Brakes — General requirements.
§ 4304. Brakes — Performance requirements.
§ 4305. Brakes — Trailers and semitrailers.
§ 4306. Horns and other sound devices; unlawful use.
§ 4307. Warning devices for emergency vehicles.
§ 4309. Obstructions to view on windshield or windows.
§ 4311. Mufflers; cutout prohibited.
§ 4312. Safety glass — Equipment; definition.
§ 4313A. Commercial window tinting.
§ 4314. Lights and reflectors; change of original design or performance of vehicle.
§ 4315. Penalties for §§ 4301-4316.
§ 4316. Directional signal lights.
§ 4317. Protectors or flaps behind rear wheels of vehicles.