To Get a phrase with this sort of outsized great importance in motor vehicle society, "JDM" can be an acronym for a reasonably dull phrase: Japanese Domestic Marketplace. It refers to merchandise built and supposed for sale and use inside Japan (i.e., not for export). This incorporates every thing from https://elevemotors.com/product/chevy-corvette-ls1-base-5-7l-v8-engine-transmission-loom-ecu/