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Old 09-19-2011, 09:28 PM   #9
Rockyminator
Registered User
 
Join Date: Jan 2011
Location: Portland Oregon
Posts: 478
My Ride: HPF Stage 2.5 M3
Mine is really noisy while driving, or at least it's noticeable to people outside the car... Wonder if I need mine replace.. I ran it by HPF and they said it's normal with these kits so I don't really know what to do.
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HPF Stage 2.5 BMW M3
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