← Michigan driving laws›Exhaust & Muffler

Michigan Exhaust & Muffler Laws (2026)

Info: Passenger vehicles can't exceed 82 decibels above 35 mph, or 76 decibels at 35 mph or below, measured at 50 feet.

InfoVerified Jun 19, 2026

Passenger vehicles can't exceed 82 decibels above 35 mph, or 76 decibels at 35 mph or below, measured at 50 feet. Cutouts, bypasses (which route exhaust around the muffler), and amplifiers are banned (MCL § 257.707c).

Official source: legislature.mi.gov →

General legal information, not legal advice — verify important decisions with a licensed attorney.

Don't get caught off guardGet a push the moment Michigan law changes — or when you cross into a state where it's different. Free.Get the free app

LawLert is an independent app, not affiliated with any government — informational only, not legal advice. Verify with a licensed attorney in your jurisdiction.