Ferrante is most famous for the eight years he spent with Torino, after moving to the club in 1996. During his time in Turin, he became one of the club's all-time top goal-scorers, especially thanks to his goal-scoring tally in Serie B. He scored 27 goals during the 1998–99 season, which earned him the title of Serie B top-scorer, and also helped the club to gain Serie A promotion, although they were immediately relegated back to Serie B the following season. His Serie A record tally was ten goals with Torino during the 2001–02 season, when he came back to the club following a brief stint on loan at Internazionale in 2001 where he played 11 games and scored once against Udinese, helping Torino qualify for the 2002 UEFA Intertoto Cup. During that season, he notably scored a goal in the Derby della mole return leg, against local rivals and eventual champions Juventus F.C., celebrating the goal by mimicking "Bull-horns" with his hands (the bull is the symbol of the Torino side, as it is the city's coat of arms; the club is also known in its contracted form as "Toro", which means bull in Italian). Juventus midfielder Enzo Maresca attracted controversy later in the match when he imitated Ferrante's celebration following his late equaliser, as the match ended 2–2. He remained with the club in 2004, after scoring 114 goals for the club over 235 league matches in Serie A and Serie B.