^^^ Not anymore. That may have been the case during the brief Fram-Champ alliance, and how they got the name "Core", from ecore. Now all Fram fiber endcap construction, no ecores and no relation to Champ Labs. Also GM oem ACDelco use poppet type bypass, not found on generic Champ made ecores like Super Tech. The last excepting the newish ST988 'hybrid' filter, with ecore cage, metal endcaps and poppet dome bypass.