Thread: Mods for N55
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      08-24-2010, 08:02 AM   #96
michaelthepsycho
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Drives: 11 Montego Blue E90 335i Step
Join Date: May 2009
Location: CA

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The absence of secondary cats means any aftermarket mid-pipe section would be obsolete, no? The stock x-pipe looks pretty well-constructed.
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