We have the largest inventory of Subaru Outback engines. Most EJ25 Single overhead cam engines for Subaru Outback we sell are re-manufactured. EJ25 Subaru engines have head gasket overheating issues so it buying a rebuilt engine offers good value for warranty because our rebuilt EJ25 Subaru Outback engines are built with precision with Japanese components. EJ25 engines are built in-house at our machine shop. Japanese version of Subaru engines don''''''''t have EGR which is the main reason why sell rebuilt Suaru EJ25 engines for Subaru Outback.