Martin is right,but you'd have got TWO L6 ecus with the Ferrari!.
Well i've had a look and i've got a few spares but there not off the 2wd cossy,1 is off a Lancia delta hf turbo 8v 2.0 and the other is off a Fiat croma 2.0 8v. NA.
I ran the delta ecu on my old Vw golf 2 turbo16v and it went ok,only running 1Bar boost though.
They are both Weber L6 non cat. ecus so theoreticly,using your cossy's eeprom,you should be fine.
If you could post up a photo of your L6 motherboard i could compare them and see if there are any major component differences.