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Old 01-04-2013, 01:36 PM   #23
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Join Date: Apr 2010
Location: niagara falls
Posts: 846
My Ride: 2000 bmw 323i
should i put the pre-cat o2 sensors in the post o2 spot on the ebay headers? seems like there is more room with those ones.... will i have to extend the wires?
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