The 23-year-old centre-back started his career with Inter, but never really got a chance to shine at San Siro.
"Whoever goes out on the pitch [for Inter] will have to give it everything they've got because we want to win," Bonucci said.
Nevertheless, he did still admit that Juventus are a "work in progress."
Reflecting on the three goals he has scored already this season, Bonucci said: "I never imagined it.
"Perhaps it's down to the fact that I played as a striker until I was 17."