My car is an auto. The factory air intake runs up to and through the radiator support to the grille area.

What I think most people don't understand is "most" factory air boxes do two things:
#1 filters air and deliver it to intake.
#2 Quiets intake air noise. (you know, that sucky sound)

Most normal people find (that sucky sound) unacceptable when shopping for a car and for their drivers.
Now that being said, a tube with a cone filter will do # 1 well but not good at #2.
"Most" factory air boxes loose efficiency at #1 to meet criteria #2.
I like (the sucky sound) so I am going to see if I can improve on trait #1.
I have no interest in making and or selling anything I come up with but I will freely share anything I find out.

Any ideas or help is appreciated as I have an open mind.