2014 Delaware Code
Title 21 - Motor Vehicles
CHAPTER 43. EQUIPMENT AND CONSTRUCTION OF VEHICLES
Subchapter I Equipment Requirements
§ 4311. Mufflers; cutout prohibited

(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.

36 Del. Laws, c. 10, § 127; 37 Del. Laws, c. 10, § 34; Code 1935, § 5665; 21 Del. C. 1953, § 4311; 59 Del. Laws, c. 371, § 1; 61 Del. Laws, c. 478, § 1; 75 Del. Laws, c. 164, § 3.;

§ 4311A Muffler requirements for commercial vehicles equipped with engine compression brake devices.

(a) No person shall drive a commercial vehicle equipped with an engine compression brake device on a highway, including residential streets, unless such commercial vehicle is also equipped with a muffler in good working order and in accordance with manufacturer's specifications and in constant operation to prevent excessive noise.

(b) For the purposes of this section, "engine compression brake device" shall mean any device that uses the engine and transmission to impede the forward motion of the motor vehicle by compression of the engine.

75 Del. Laws, c. 164, § 1.;