Ask a Trooper - Catalytic converters should not be removed
Question: What are the penalties in Minnesota for removing a catalytic converter on a vehicle if the sound level of the car is kept reasonable? Is there a specific law that prohibits the removal of the cat or are they more pertaining to the sound level that is produced form the process? Also, if you know what the statute is that identifies requirements for the exhaust system of a vehicle, that would also be appreciated.
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