Thread: Best exhaust for M4?
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      04-16-2017, 10:02 AM   #28
docmfg
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Drives: E46 M3/2016 M4
Join Date: Oct 2015
Location: CA

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2009 MB C63  [0.00]
2012 BMW 535  [0.00]
2016 BMW M4  [0.00]
2003 BMW M3  [0.00]
Save your money and just turn off the exhaust valves.
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