Just thought I would let you guys know of a great decarbonizer for your Ferrari engine. I tried it and you can see the black smoke coming from the exhaust especially after the car has been sitting for a while and you start it. It really improved the accelleration of my car which the engine was heavily carboned. I intend to use it ocassionally since I don't drive my Ferari that much. It says and should reduce emissions for pollution test since it cleans the entire combustion chamber. Seems like a great product to me. It is called RXP Gas Kicker. It comes in a 2.5 oz red bottle at all auto stores. Sells for about $7.00. Just a Tip.