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Old 03-14-2010, 02:55 PM   #3 (permalink)
mpp9
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The invidia is a bit more restrictive than fast intentions, stillen and berk so that it can be a bit tamer but what do you all think about the difference in overall gains when paired with hfcs. It would seem there's a point of diminished return when adding hfcs after a catback or catback after hfcs. You think invidia with hfcs would show the same gains as other exhausts with hfcs?
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