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Old 09-19-2012, 06:39 PM   #2
RoadKillDMD
Scooby Specialist
 
Member#: 284792
Join Date: Jun 2011
Chapter/Region: RMIC
Location: Vanilla Valley, CO
Vehicle:
2011 STI
Blurple

Default

Could be the BPV. Does the whistle happen when you let off of the throttle? Or does it whistle while in boost?
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