It seems like January 17, 2012 will be a big day for Saints Row: The Third as far as DLC is concerned. First, you have the release of Genkibowl VII which is to be the first mission pack available for the game. Then, there’s also the release of the CheapyD free homie DLC. And now, its been announced that there will also be an exclusive download for those with a Steam copy of the game.
Beginning on that date, all players who own the game on Steam will receive 9 custom Team Fortress 2 giant-sized character masks! These masks can be used all around the city of Steelport. The items will be added to your inventory through a patch just like the CheapyD homie. You don’t have to do anything but wait for the patch to go live!
Source: Official Saints Row: The Third website