If you find a legally certified used unit, use these steps to ensure you aren't buying a "hollowed out" or dead part: 1. The "Shake" Test Top Catalytic Converter Brands - High Quality & Low Price
: States like California , New York , and Maine have even stricter rules. For example, in Maine, it is completely unlawful to sell or install any used or salvaged converter on any vehicle.
Buying a used catalytic converter can save you hundreds of dollars, but it is a transaction heavily regulated by federal and state laws. Because these parts contain precious metals like platinum and rhodium, they are high-risk items for theft and environmental non-compliance. ⚖️ Legal Realities You Must Know