Universal Catalytic Converter For 49 States All the performance features of the Magnaflow Direct Fit series at impressive savings! Ultra high flow converter reduces the restriction that chokes your performance exhaust! More durable with higher efficiency ratings than OE converters Built like a tank from mandrel bent 16-gauge stainless steel OBD-I/OBD-II legal. Not legal in California. Cannot be shipped into California. The Magnaflow Universal Catalytic Converter is the same catalytic converter as their Direct Fit series at substantial savings. Unlike the Direct Fit converter, you must cut out your old converter and weld in the new.