Ferrari F12 ONYX Concept F2X Longtail with iPE Exhaust System! Acceleration & Sound by turboandstance - August 1, 2018August 1, 2018 During my stay in Monaco I have filmed this modified Ferrari F12Berlinetta F12 ONYX Concept F2X Longtail. It is tuned to 800HP and fitted with a iPE Exhaust. You will hear some loud sounds in the streets of Monaco, including some revs! Also the police stopped the car, because it was too loud Leave a comment