← Alabama driving laws›Exhaust & Muffler
Alabama Exhaust & Muffler Laws (2026)
Info: Your vehicle needs a muffler in good working order, operating at all times.
InfoVerified Jul 26, 2026
Vehicle rules change at the state line.Track them in the free LawLert iPhone app and get an alert when you cross into a state where they differ. No account.Get the appYour vehicle needs a muffler in good working order, operating at all times. Muffler cutouts, bypasses (which route exhaust around the muffler), and devices with no baffles are prohibited, and excessive noise or annoying smoke and fumes are barred. Alabama sets no fixed decibel limit (Ala. Code § 32-5-216).
Official source: alison.legislature.state.al.us →
General legal information, not legal advice — verify important decisions with a licensed attorney.
Don't get caught off guardCross into a state where this law is different and the free iPhone app tells you what changed, even with the app closed. It also alerts you when a law you track changes where you live. No account.Get the free appTrack this law — get alerted when it changes
We watch the official sources behind Alabama vehicle rules. If a tracked rule changes, you get one short email — never more than one a week. Free, unsubscribe anytime.