I ordered a cabin air filter from amazon EocoGard p.n. XC11714 and it does not fit 1/2 IN. to wide and 2 IN. to long amazon claimed it would fit. I order the O.E.filter from local dealer $35 but gave me military discount $25 plus tax and i will pick it up Monday p.n. 97133-S8000 . The filter is very easy to change remove damper arm just pull it off and remove the 2 stops it should take less than 10 minutes at most to change..