: The EPA considers it a violation of federal policy to install an untested used converter from a salvage yard or private seller.
: Catalytic converters are often covered under a federal emissions warranty for 8 years or 80,000 miles . Check with your local dealership to see if you are eligible for a free replacement. can i buy a used catalytic converter
Instead of a used unit, consider these options which are legal and often more reliable: : The EPA considers it a violation of