Lol, I know from personally experience. Your best bet is too get the swapp stuff together, do the swap, then find a 2JZ-GE 5 Speed ECU wth VVt-i (im selling mine), plug it in and see if it works. Being a Lexus, idk if all you other things are going to work. (Electonic throttle body) things like that, but htere only one way to find out, so keep us posted on what you dicide to do.