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      11-01-2012, 11:39 AM   #5
kchu221
JDM whore
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South Korea
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Drives: 2009 Porsche 911 Turbo
Join Date: Jan 2012
Location: los angeles

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i dont even think theres a handful of people on here that are runnign the gruppe m, to even fairly compare the two systems together... that being said, the sound each system makes are all personal preference, but the only comparison between the two is prolly who has better quality titanium and welds!
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2009 Porsche 911 Turbo