That's what I thought. The tx box in question is coming out of a cally turbo, that's being broken and is going into my old cav gsi 2000 4x4. My mate owns it now, but he wants to do a turbo conversion too, but will run an f20 til he can find a cheap/working f28.
I guess that's what I'm asking then! The whole thing seems mad... because as I'm not sure that he's gonna run it as a 4x4 gsi (with that tx box) and then do the turbo op, or whether he'll wait til he gets the engine in to fit the tx box.