Bad Zfr bearings?
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Bad Zfr bearings?
Hey guys. I’ve got a fbo e47 tuned lnf with a 6758. Runs like a top. Recently, when I shut the car off I can hear like a “whirring” noise coming thru my intake, (k&n) and I’m worried it might be my turbo bearings going bad. It also makes this noise at idle. Something i should be concerned about?
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