phew lotta work,personally i would just source a car with it fitted but there are companys that do aftermarket otherwise you would probably be better going to the scrappys for the parts and then fitting them.dont know if fiat use a similar system across lots a models cos that makes it easier to source and even when its all fitted/plumbed in you would probably need to get it pressurised at a garage.like i said a lotta work, costly,porbably put ur insurance up,WILL put ur fuel consumtion up a LOT,and youll be down on power all in all cheaper/easier to buy a car with ais/con ive got a cavy cdx for sale with it hehe
The Fiat Cinquecento
Fun While It Runs