For Just a term with this sort of outsized importance in vehicle tradition, "JDM" is really an acronym for a fairly unexciting phrase: Japanese Domestic Market. It refers to products built and supposed for sale and use in just Japan (i.e., not for export). This contains everything from autos such https://elevemotors.com/product/ford-mustang-gt-v8-5-0l-coyote-gen2-engine/