It shows installation of the SAI filter in the instructional video and the .pdf instructions too. When I found out it wasn't included I made sure to order it with the intake, even though they didn't ship out together =\Really thrilled to find this out.
I should have known it was too good to be true that the intake was only $189.
Edit: Called APR and was told that I need to purchase it separately. They didn't seem to be willing to just ship the filter even though the listing doesn't explicitly say it's not included. Pretty disappointing.