Exhaust Noise in California
Vehicle type: Sedan
Passenger-car exhaust may not exceed 95 dBA under the current SAE test standard; a working muffler is required and cutouts are prohibited.
Verified against primary sources · August 2026
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Frequently Asked Questions
Are exhaust noise legal in California?
What are the exhaust noise limits in California?
Are there exceptions for exhaust noise in California?
Street-legal exhaust noise picks
Gear that helps you mod without a ticket in California.
Measure your exhaust at the test RPM before a fix-it ticket does.
Exhaust silencer insert →A removable insert that brings a loud exhaust back under your state's limit.
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