Chipping/ Boosting & Alloys

Does anyone know of any diesel chips for a 1991 fiat 1.9 turbo diesel.

I cant seem to find anything on the web that helps.

Found out no such product is available because the fuel pump is manual.

Also, are there any other products that would give a substantial difference to the car.

thanks

P.S, could anyone show me some official fiat tipo alloys.

cheers