
When an average guy tries to buy catalytic converters for his Ford Mustang in CA
Now, I know this is an old argument "the Hot-rodder vs. pollution." but there is a specific point I'd like to make. Why is it that you can't buy a used set of catalytic converters? I mean if they work, why not? Why is it that 49 states say you can buy aftermarket catalytic converters but CA says no? Yes, there are some aftermarket catalytic converters that you can get IF they have an "E&O" number on them which is an "Executive Order number." What is an "Executive Order Number?" I'm glad you asked! It is the number the state of California stamps on a "smog part" if it isn't an OEM part.