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Kentucky Exhaust & Muffler Laws (2026)

Info: Your vehicle needs a suitable, efficient muffler.

InfoVerified Jun 19, 2026

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Your vehicle needs a suitable, efficient muffler. Running with the cutout removed is prohibited, and so is any change that makes the exhaust louder than the factory setup. Kentucky sets no fixed decibel limit (KRS § 189.140).

Official source: apps.legislature.ky.gov →

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