Vacuum leak? OP's car sounds like a vacuum cleaner to me! That's horrible. I hope they find and fix it. I have a whistling sound as well, but it only happens when I'm lightly on the gas and above 3k RPMs. Doesn't seem to harm anything so I've learned to live with it.
This I wouldn't be able to, lol.
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'06 BMW M3 ZCP 6MT | JRZ RS Pro + Hyperco 650/750 | Epic Tune | Brembo 355mm BBK | too many to list
'11 BMW M3 ZCP DCT | Akra Evolution | Eventuri intake | MCS 3-way | 4.6L Carbahn S65 | Zebulon Aero | AP Racing Radi-CAL BBK by Essex | 305/645-18 Pirelli DHB
Porsche 992 GT3, 991.2 GT3RS, 718 Spyder
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