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Kentucky Exhaust & Muffler Laws (2026)

Info: Suitable/efficient muffler required; running with cutout removed & noise-increasing mods above factory prohibited (no fixed dB) — KRS §189.140.

InfoVerified Jun 19, 2026

Suitable/efficient muffler required; running with cutout removed & noise-increasing mods above factory prohibited (no fixed dB) — KRS §189.140.

Official source: apps.legislature.ky.gov →

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