Thread: Air Rushing sound after headers install

Didnt know if its normal or not to hear an air rushing when accelerating hard after a header install. I thought my stock airbox was causing a restriction so i made a hai intake but it still does the same thing. Havent seen any visible leaks and the egr was modified to fit better into the zzp header egr. Is the primaries being too big right now without boost causing the noise or some kind a leak somewhere?

yeah same sound with stock airbox and hai