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      01-05-2013, 05:36 PM   #38
ObeyMyFast
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Drives: 2011 550i
Join Date: Dec 2010
Location: San Diego/Berkeley

iTrader: (0)

I haven't been on here in forever, but I did this to my car a long time ago, and installed manual cutouts behind the primary cats. I'll post up a video if i get enough interest for it.