OK air box mod/air intake kit. Straight facts if i am not pulling any vacuum on my air box gauge will changing it out or moding mine give me anything but more noise in the cab?

 

You need more air for all of your mods. I like the Amsoil nanofiber series, its a dry filter (no oil). Outflows the oiled ones.
YES, it gives you more of a whistle.

 

Try using the Amsoil EAAU4510. You can use 4.5" dia pvc and install it right on the turbo intake hose with the filter. Installed it tonight...so far so good and flows much more than the stock box....even cheesed w/holes. $79 total cost.