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houtan · 09-12-2014, 09:41 AM

Does anyone know if the burbles are tune related, exhaust related, or both? If it's tube related, can an etune, like one from ptf, add the burbles?

09-12-2014, 09:41 AM	#20
houtan Colonel 707 Rep 2,448 Posts Drives: 2011 135i Join Date: Jun 2013 Location: socal iTrader: (17) Garage List 2011 135i [9.80]	Does anyone know if the burbles are tune related, exhaust related, or both? If it's tube related, can an etune, like one from ptf, add the burbles?
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