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      02-18-2016, 03:56 AM   #21
elisiX
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Drives: '20 X3M Competition
Join Date: Oct 2015
Location: Sydney, Australia

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After a drive to and from work today in mostly heavy traffic, I think it might be droning quite a lot with this mod. Plugged it back in to do a comparison tomorrow. Will decide then if I want to keep the valves open or closed. Aside from the percieved drone, having sport plus exhaust characteristics in economy is awesome.
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