Thread: exhaust pre-resonator removal??
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      11-28-2013, 03:13 PM   #7
AlpineWhiteM3
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Drives: 2011 m3
Join Date: Jun 2011
Location: nyc

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just removed 2 resonators and replaced with straight pipes in the next few weeks i will be opening stock mufflers to see if i can make some sound improvments
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