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Illinois Exhaust & Muffler Laws (2026)

Info: Adequate muffler/exhaust required to prevent excessive/unusual noise; cutouts/bypasses & noise-increasing mods prohibited (no fixed dB) — 625 ILCS 5/12-602.

InfoVerified Jun 19, 2026

Adequate muffler/exhaust required to prevent excessive/unusual noise; cutouts/bypasses & noise-increasing mods prohibited (no fixed dB) — 625 ILCS 5/12-602.

Official source: ilga.gov →

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