Back when Japanese cars started to gain recognition in the United states, more and more people started to see the potential of the little Japanese engines and saw that they could compete with the american cars during that time for a lot less money. A rivarly started on US soil, between Domestic and Import. Even though it has died down, there is still some tension between the different groups.

What is JDM?

The term Japanese Domestic Market (JDM) is used by companies in Japan to refer to the local market for domestic goods (as opposed to the international market).

Within car culture, this term refers to Japanese cars and parts designed and constructed to conform to Japanese vehicle and equipment regulations and to suit Japanese market preferences.

In the 1970s and 80s, Japanese motor companies produced many popular performance cars and performance versions of existing cars, but many of these were never exported beyond Asia.

In the late 1980s and early 90s "grey imports" of Japanese performance cars (such as the Toyota Supra and Nissan Skyline) became abundant in Australia, Europe and America. Many factors, such as the interchangeability of parts, the low cost of obtaining an imported used car, and e-commerce via the Internet all allowed the expansion of the practice of modifying a low-cost performance car.

Because of their light weight and the increasing availability of low-cost tuning equipment, Japanese performance cars exhibit high performance at low cost in comparison to dedicated sports cars. As professional sporting and racing with such vehicles increased, so did recreational use of these vehicles.


Japanese tuning started from the heartland of Japan. It all started from racing in the mountains. They called it togue racing. People would tune thier cars and go up and race in the mountains. Most of the these racers had small 4 cylinder engines, using most of their power. Often JDM engines use turbos to compensate the lack of cylinders.