What is this J-Pipe you speak of with the GTi-R turbo setup?
And also, I see that the complete SR20DET engines(from the Bluebird, for example) come with equipment not included in the turbo packages(like oil-to-water oil coolers and sodium filled valves and lower compression pistons and "oil squirters"). It seems that these items are present to make the engine run better and also to prevent overheating or other problems associated with driving an engine hard. Can this equipment be added to a U.S.-spec SR20DE?
I'm thinking that trying to do so may drive the price up to the point where just getting a JDM engine is a better idea.
Thanks in advance.
P.S. How does one adjust the boost level? With the ECU?