BMW M3 Forum (E90 E92) - View Single Post - Idle high pitch rotation sound

Route 16 · 07-30-2018, 05:29 PM

I've had the same sound for 6k miles after I installed my iPE muffler

Cool, so at least I know it's the ICV and not a loose ITB clamp

07-30-2018, 05:29 PM	#22
Route 16 I got lei'd 844 Rep 7,593 Posts Drives: '10 E90 M3 Join Date: Sep 2011 Location: Dark Side of the Moon iTrader: (62)	I've had the same sound for 6k miles after I installed my iPE muffler Cool, so at least I know it's the ICV and not a loose ITB clamp
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