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      04-20-2010, 10:42 PM   #11
Fen335i
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Drives: e92 M3 / X5d / Z4 M Roadster
Join Date: Jun 2008
Location: Pacific Northwest

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Dinan!

If you ever want to increase your hp/tq output via HFC's/xipe, then you'll want a quieter rear section...otherwise if you add a loud rear section with HFC/xpipe...you're going to be so loud you won't be able to hear yourself think...however, some really like that kind of thing. So, to each his own...