As shown in the photo Red Bull created the F-duct as well as other teams. Many wonder why wash teams have F-duct McLaren unless it made as it were made by BMW Sauber although their versions will not happen
Welcome to the forum vlado09, it's my pleasure to meet you. I suggest that you please respect how the forum is set up, because we already have a thread dedicated to just this car, and the intent is to keep all technical topics related to this car in the one thread at http://www.f1technical.net/forum/viewtopic.php?f=12&t=7658&start=1665