i bought some intake tube off ebay real cheap, nice piece for only 24 bucks. but anyway, i put it on and drove it later, and i hear an airy-whining sound, just that of a turbocharger spooling up. i have that tube and an open filter under the hood. has anyone else had this sound before? i just wanna make sure it's not a bearing, dont think it is though. this sound seems to vary more with throttle response than engine rpm


