Thread: VRSF Downpipe Installed without Tuning - No Codes!
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      09-15-2016, 12:52 PM   #11
Franklin Joseph
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Drives: BMW
Join Date: Aug 2007
Location: Texas

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i assume u mounted the mini cat on the back o2 sensor?

waiting to see you put a few more hundred miles before i decide on this. thanks!
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