Ferrari 599 GTB Fiorano - Post-Cat Spare Pipes**does not fit 599 GTO and 599 SA Aperta models** Set of cat delete pipes to remove the secondary catalysts of the OEM system. Will not throw CEL as they are after the OBD sensors. Additionally, you could fit the Capristo Standard Exhaust Remote Kit for the 599's exhaust valves, which would provide the ability to open and close the valves at a touch of a button. In the closed condition control is returned to the engine ECU. CAPRISTO Exhaust systems