Jdm And Usdm Differences?

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Junior Member
I want to know the differences between these motors. I live in California but in washington for now and will a jdm motor pass emissions in socal?
First off you can do a search to answer most of your questions,not post four different threads (you could put all these in one thread even.).There are reference sections and articles here for a reason,and there are very few tech sites with the amount of info that is here.I've already done some research for you.Look around and you will find what you need.