All items fit 2015+ STI for sure. Some parts will fit other years/makes/models.: $60 (6) Oil Drain Plug Gaskets - 11126AA000 (2) Engine Air Filters - 16546AA12A (2) Cabin Filters - 72880FG000
Had to use a crappy "free" filter on the last oil change for the 09. Didn't have any OEM filters on hand. We also have to deal with gravel during road construction for 2+ months. So the filters need to be changed soon.