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Old 07-10-2012, 04:20 PM   #25
Emsan
2nd Gear Member
 
Join Date: Oct 2009
Location: Niagara
Posts: 90
hmm how much would a stock 325i benefit from one of these... I do plan on getting a MarkD 91 very soon so I'm sure it'd make the headers work better. What are the claimed hp increases?
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