IS MY MOD LEGAL?

Exhaust Noise in Montana

Vehicle type: Sedan

Conditional

Montana requires vehicles to have functioning mufflers and limits exhaust noise to 95 dB when measured under specific testing conditions.

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Frequently Asked Questions

Are exhaust noise legal in Montana?
Montana requires vehicles to have functioning mufflers and limits exhaust noise to 95 dB when measured under specific testing conditions.
What are the exhaust noise limits in Montana?
Montana requires vehicles to have functioning mufflers and limits exhaust noise to 95 dB when measured under specific testing conditions. For specific numeric limits and thresholds, see our full compliance report.
Are there exceptions for exhaust noise in Montana?
Yes, there may be exceptions and exemptions. Get the full details including medical exemptions and edge cases in our compliance report.

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