Jdm car performance chip stage 3 obdii programmer engine, The jdm prom features an easy "plug and play" installation to your car’s factory harness with absolutely no negative side effects. this is a "no" risk install,.What jdm? | jdm cars, What is jdm? a common question for people new to the scene. this article covers all the basics of jdm cars, and what makes them jdm..Car modification parts |