If it's air leaking between a couple of pieces of metal, , boost/vacuum leak, or any of the other myriad of things I've heard then you have it installed wrong.
I already told you all it was just a harmonic carried in the aluminum.
Don't believe the guy with the prototype on his car, that had 20 different combinations of the intake on his car, dyno'd it on his car, 1/4 miled it on his car, and has talked with Rob many times. What do I know?