My $.02
I have the ATS,. . that's not to say anything about the Banks except I just don't like the way they do business some times. Anyway, ATS has a dyno chart on their web site which demonstrates a hp improvement from flow.
Here is my thought on this issue,... it is much like a venturi on a carb in that when it narrows it speeds the flow of air,... . in this case vs fuel with the carb, and that is caused because after it narrows it then opens into a larger opening. It works on a carb so why not in this case? Additionally a selling point in my case was the predrilled and tapped fittings for NOS &/or Water/meth. It was just a convenience thing and on a personal note I felt the ATS was better looking,... how much hp is the better looking part??
Just some thoughts.
I have the ATS,. . that's not to say anything about the Banks except I just don't like the way they do business some times. Anyway, ATS has a dyno chart on their web site which demonstrates a hp improvement from flow.
Here is my thought on this issue,... it is much like a venturi on a carb in that when it narrows it speeds the flow of air,... . in this case vs fuel with the carb, and that is caused because after it narrows it then opens into a larger opening. It works on a carb so why not in this case? Additionally a selling point in my case was the predrilled and tapped fittings for NOS &/or Water/meth. It was just a convenience thing and on a personal note I felt the ATS was better looking,... how much hp is the better looking part??

Just some thoughts.