What is your question?
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What is your question?
IF NOT CHANGED, WHAT ISSUES MAY BE CAUSED AS A RESULT ? THANK YOU GRATEFULLY
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Yes you can use an aftermarket Catalytic Converter and still pass smog, it just needs to be the correct one for the vehicle with the part number and EO number stamped on it. If it fails and isnt replaced it will increase the emissions and in severe cases where it gets plugged other issues could arise from the engine.