Geoff, I would imagine that you would want it for the 6.9, right ? You are probably aware of this, but it will not be easy to accommodate it under the 6.9 bonnet/arrangement. You will have a problem on the right hand side where the battery is located, and you would have to relocate that unit to the boot of the car. Probably not such a bad move, but takes a bit of work - if you're doing it properly. Additional, there is hardly any space at the front of the engine unlike the 126 models that are bodied in such manner as to allow the intake snorkels to be fitted alongside and in front of the radiator to accept the fresh air. Regards. Styria