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Red Bull RB9 - rear diffuser channelling 03 November 2013

Red Bull's chief technical officer, Adrian Newey, introduced this update at the Belgian round earlier in the season and it's again on the car in Abu Dhabi. There is a very small, twisted channel on the outside of the diffuser, in a position very difficult to find. It follows a similar, but more visible solution introduced previously by Sauber to better extract airflow from the diffuser.