For Any expression with these types of outsized great importance in motor vehicle society, "JDM" is undoubtedly an acronym for a reasonably unexciting phrase: Japanese Domestic Marketplace. It refers to things built and intended for sale and use within just Japan (i.e., not for export). This incorporates everything from vehicles https://elevemotors.com/product/jdm-toyota-3sgte-engine-for-sale/