Motor vehicle muffler

HRS §291-24.5 — under Chapter 291.

HRS §291-24.5

§291-24.5 Motor vehicle muffler. (a) No person shall use on a public highway, sell, offer for sale, alter, or install a muffler, including but not limited to a cut-out, bypass, or similar device, that will noticeably increase the noise emitted by a motor vehicle above that emitted by the vehicle as equipped from the factory.

(b) Except as provided in section 291-24.4, any violation of this section shall be enforceable by police officers. Violation of this section shall subject the violator to the following penalties:

Any person who violates the provisions of this section may be issued a summons or citation for the violation. [L 1977, c 79, §1; am L 2024, c 171, §4; am L 2025, c 172, §4]