If you're going to go through all that trouble to put a heavier motor into your car, why not get an RB26DETT? Or the RB30DET? Or better yet, the VQ30DETT?
No stock ECU from any N/A car can handle boost... you obviously need a controller or reflash of some sort, and it will most likely come with the turbo kit you buy (unless you're looking at kits you shouldn't be looking for).
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'05 Black Obsidian G35 6MT Sedan
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