This video is 2004 (average speed record) but Montoya in 2005 with McLaren reached 372.2 km/h (Formula 1 record on a circuit).
In 2017, moving the Rettifilo chicane (and with the new rules, the cars 5 seconds faster, they say, also thanks to Pirelli new tyres -> downforce), they could reach 400 km/h.
It's worth to have Monza 2017 because of that