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Old 07-09-2010, 12:36 AM   #11
2nd Gear Member
Join Date: Dec 2005
Location: Waterwoo
Posts: 191
^ Aren't the cats built into the headers? I thought it was like this on my 330Ci...
Summer: BMW 135i M-Sport
Winter: 2004 Audi A4 Ultrasport 2.7tt
Year round: 6 cylinders, two turbos, and 6 speeds.
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