De Snorkeled! Does it negatively effect HP or torque?

[backman_z]

Here is a picture if the inner dimensions of both ends of my snorkel. It was taken from a 2004. I have done my best to be as accurate as I can.

http://www.flickr.com/photos/backman_z/4670777862/

Doing the math indicates that the cross section area of the small end is about 44% smaller than the larger end (which goes directly into the air box). When you remove the snorkel, the air entry into the air box is now slightly larger than the large end of the snorkel. I still find it hard to believe that this does not cause some obstruction of airflow.

I am hoping to do some mods to my car this summer. I was thinking about doing a dyno it after each mod. If I can, I will try to get with and without snorkel dyno results.