Torino coach Giampiero Ventura hailed their mental strength for victory over Juventus.
Andrea Pirlo gave Juve the lead, but they were over-run by Matteo Darmian and Fabio Quagliarella.
Ventura said: "We broke many taboos and the Derby della Mole hadn't been won since the dark ages. Over the last four years we built from nothing to create a great team and this was the icing on the cake.
"Now there are six games to go and we could hopefully challenge for something else this season too.
"We felt the pressure the first year, as we'd been outside of Serie A for a while, but this time the side was far more mature. If we weren't mature, we couldn't have won away to Athletic Bilbao and dominate Zenit in the Europa League.
"Juventus had only one real chance in the first half with that Pirlo free kick. I asked him not to before the game, but he did anyway!
"Towards the end we'd given everything and were exhausted, then we felt the intense desire to win and therefore almost stopped playing in the last 10 minutes. We knew how much it meant and brought out the old Toro heart. It was sheer will-power."