The dbilas intake does that. It makes a horrible hu-WEEEEEEE noise that sounds almost like a harmonica. I get it at WOT and under certain under conditions between 3.5-5.5kRPM. It's not the DV.
I've found the dbilas to be unsatisfactory for a number of reasons; it's heavy, it makes that screaming noise, it gets very hot, the pin that is used to hold the intake to the engine often shears, the intake doesn't line up so neatly with the air intake, the filter is very small. There is also anecdotal evidence on the intarwebs that it can introduce lean fueling in certain cars (there was a thread on cupranet about it IIRC).
I'm swapping mine with another one quick; in the meantime I'm putting the stock intake back on.