1 Vital distinguishing characteristic of JDM automobiles is that they do not need a Car Identification Quantity (VIN). As an alternative, they've got a frame number (generally known as a chassis variety) which identifies the motor vehicle's model and serial amount. JDM, an acronym for Japanese Domestic Marketplace, refers to https://elevemotors.com/product/chevy-corvette-ls1-base-5-7l-v8-engine-transmission-loom-ecu/