Your vehicle should pass the California smog check upon the smog technician verifying that the vehicle is in fact federal emissions certified and the aftermarket catalytic converter is a federal emissions certified CAT, designed for use on the vehicle. The vehicle must not have any tampered emission components. The smog technician should not be alarmed of the fact the CAT is federal, since the vehicle too is federal.
Advise the smog technician that your vehicle has an aftermarket federal emission CAT and that the vehicle is a Federal emissions certified (49-state legal) vehicle prior to the smog test. There should be no need to visit a smog check referee. If you find a smog technician unwilling to pass or inspect your vehicle, seek assistance from another smog station.
The Dynomax muffler and pipe will not cause a smog check issue since they are located downstream of the catalytic converter.
