There isn't one.
Get one directly from Nissan. If you are gonna do it, spend a few extra bucks and do it right. of course, after you get a turbo, you are gonna need to upgrade the heads and differential too.
which 300z. z31 or z32. z31 is single z32 is twin. what do you plan on doing with the car is it factory turbo'd or not you left out a lot
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