Hey my freind has a 90 300zx with a NA motor in it that dosent work. I was able to find a VG30DET for a good price but I am a bit confused I never knew they made a single turbo version. I know that many have been modified for peopl that out them in there 240s. Is the single turbo a factory motor or cuctom. Also if swapping this turbo motor what is needed to be done change ECU, Exshaust, etc etc things like this. If anyone has done this swap I could use all the help i can get plus if anyone can direct me to a site with this information as well that would be great. Sure hope you can help me out thxs.