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South Carolina Exhaust & Muffler Laws (2026)
Info: Your vehicle needs a muffler in good working order so it doesn't make excessive or unusual noise.
InfoVerified Jun 19, 2026
Your vehicle needs a muffler in good working order so it doesn't make excessive or unusual noise. Muffler cutouts and bypasses (which route exhaust around the muffler) are prohibited. South Carolina sets no fixed decibel limit (S.C. Code § 56-5-5020).
Official source: scstatehouse.gov →
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