Open pod air filter noisy?

Many times we hear people say its noisy. Well how noisy is that noise..so I test it on my Hyundai Elantra X20.

This my set up....

Here is my open pod air filter

Here is the video..dont forget to switch on your PC speaker....Im travelling at 140km/hr....how noisy is that filter..can you hear them? Are you sure its the air filter noise or the tyre noise?

So... its all depends on the design of the filter and size as well. I can hear the noise of the filter once I touch 160km/hr...but the noise its acceptable at that speed.