He learned that California follows standards, which are far stricter than the Federal EPA rules used in the other 49 states. Installing a federal-only converter would mean failing his next Smog Check and being unable to renew his registration. Step 2: Cracking the Code (The VECI Label)
Alex realized he couldn't just buy a used converter from a stranger on a marketplace—it's to sell or install used converters in California unless the seller is a licensed dismantler with specific VIN-matched documentation. How to Identify a California Compliant Catalytic Converter
Alex's first instinct was to look for a cheap replacement online. He found dozens of options for $200, but they all had a warning: .