Thread: MHD Exhaust Burble = Constant Smiles
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      06-23-2016, 07:07 PM   #4
febul
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Drives: 2009 BSM 135i
Join Date: Mar 2014
Location: New York

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Just wondering, why'd you choose hard over aggressive? I'm deciding what to keep mine at.

Do you have any idea what impact this option has on the engine/turbos?
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