For Just a expression with such outsized great importance in auto society, "JDM" is really an acronym for a reasonably uninteresting phrase: Japanese Domestic Industry. It refers to items built and supposed for sale and use in just Japan (i.e., not for export). This involves almost everything from autos such https://elevemotors.com/product/toyota-2jzgte-vvti-engine-3-0l-dohc-twin-turbo-jdm-2jz-motor-auto-trans-wire-ecu/