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      07-22-2019, 12:55 PM   #5
Mvy
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Drives: 2008 E93 M3
Join Date: Nov 2014
Location: GA Peach

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Bouncing RPM at idle is commonly associated with the idle control valve or tank breather as Scrippy noted.
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Harrop Supercharger, BPM Tune, K/W Coil over kit, Stoptek BBK, Magnaflow exhaust, ear to ear grin everytime I drive...
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