Damn that is annoying, mine isn't that high pitched, not sure if it's the size of the blower or directing the air down by the headers that makes the difference.
@JetmechF16
that high pitch sound when he brings the rpms up a little is the enclosed BRRV, towards the end he's got the rpms pretty steady and its just howling away - in this video there is no hose on it, just the open "mouth"
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