No matter what if you have f/i your reliability goes down the drain...and if you do want a car thats already been modded keep in mind that they have probably been driven pretty hard...now about the thing with stock turbo civic...that stock motor that comes in the civics are all sohc(besides 99-00 Si) so I would recommend a motor swap over a turbo D series...remember you can always turbo a B series which will result in more power than the D series...with your friend and his turbo sohc hes pretty stupid to think that he can kill any H22 or GSR swapped civic on the street...a turbo GSR hatch would rape the shit out of his little sohc...