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      07-09-2014, 04:07 AM   #3
akashyap
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Drives: F80 M3 & E46 M3
Join Date: Sep 2013
Location: Austin TX

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It sounds like you have a leak at the turbo manifolds. Mine had this problem as well at around 22K miles.
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E46 M3
CDV Delete, Auto Solutions 30%, SGT Coilovers, TopSpeed Exhaust
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