(I'm bumping this thread up a few years)
My local O'Reilly's auto parts place carries (not in stock, but can get in 1-2 days) two exact fit engine air filters for the 2015 Mirage DE:
-- WIX WA10125, for $26.99; and
-- K&N 30-3016, for $47.99.
For the K&N, on it's detailed description webpage, it does say that it is reusable, but it says nothing about how it is to be washed. It also says that the filter is "pre-oiled" and says how much oil is needed to re-oil it after washing, but it doesn't say what kind of oil to use.
I just popped in a WIX and don't know if it will affect performance noticeably compared to the used filter I'm replacing (a ???? 16085 ). I might consider using the K&N, if I knew more about the cleaning, drying, and re-oiling process. I wouldn't mind considering a less expensive filter than the WIX, for that matter.
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View my fuel log 2015 Mirage DE 1.2 automatic: 43.0 mpg (US) ... 18.3 km/L ... 5.5 L/100 km ... 51.7 mpg (Imp)