Mr. RC let me disagree you. Ok it could be true the story that you said, your argumentations in general BUT I believe to my friend, he done a lot of modifications directly from Porsche in Germany for Cayenne TT and in the past for all other Porsches he had. He had also the documentations about the powerkit and now he is loooking forward to do something to his new baby 997 Carrera S. He sold the Cayenne TT because is not a sporty vehicle as he wants.He has also friends in Zuffenhausen werke.