I'm working on designing a new sealed [cold-air] box hi-flow intake for my truck. I will be replacing the stock airbox with a custom designed one around a hi-flow filter that will keep it clear from muck, etc... So my question is: I've noticed that the stock airbox has a "Resonater tube attached to a "resonater box". What does this do? ...and is it important? At a glance (from the name), I would guess that it is to dampen the sound level of the intake, but guesses are dangerous.