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      08-06-2008, 05:05 PM   #15
Purgatory
Private First Class
Canada
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178
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Drives: 2011 X5 xDrive 5.0
Join Date: Sep 2008
Location: Calgary

iTrader: (0)

Based on the two youtube videos below, IMO I would prefer the Tial BOV vs. the HKS due to the high pitch "whistling", I also noticed that it seems to take less time to vent using the Tial. Is there anything to this, or is this just my imagination?
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