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Louisiana Exhaust & Muffler Laws (2026)
Info: Your vehicle needs a muffler in good working order.
InfoVerified Jun 19, 2026
Your vehicle needs a muffler in good working order. Cutouts and bypasses (which route exhaust around the muffler) are prohibited, and exhaust changes that increase noise are banned. Louisiana sets no fixed decibel limit (La. R.S. §§ 32:352, 32:353).
Official source: legis.la.gov →
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