Texas driving lawsExhaust & Muffler

Texas Exhaust & Muffler Laws (2026)

Info: Your vehicle needs a muffler in good working condition so it doesn't make excessive or unusual noise.

InfoVerified Jun 19, 2026

Your vehicle needs a muffler in good working condition so it doesn't make excessive or unusual noise. A cutout, bypass or similar device (which routes exhaust around the muffler) is prohibited. Texas sets no fixed decibel limit (Tex. Transp. Code § 547.604).

Official source: statutes.capitol.texas.gov

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