There is no official Stargate Universe (SGU) Season 3 . The series was cancelled by Syfy in 2011 after two seasons, leaving the story on a permanent cliffhanger.
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Purchase Episodes or Seasons: Many digital stores like iTunes, Google Play Movies & TV, or Amazon Video offer episodes or seasons for purchase. This way, you're directly supporting the creators and getting a high-quality version of the show. There is no official Stargate Universe (SGU) Season 3
Since there is no official "Season 3" television footage, any torrent labeled "Stargate Universe Saison 3 French Torrent" is likely to be: Google Play Movies & TV