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Discussion Starter · #1 ·
Hey I’ve had my 09 wrx for awhile now with barley any problems other then a MAF sensor that needed to be replaced I’m currently stage 1+ with the big SF intake and just recently I’ve been hearing a whistle noise while driving. It’s very faint but it’s still noticeable it almost sounds like one of my doors isn’t closed all the way and there’s wind entering the car (I know that’s not what it is btw) it happens while I’m pulling and while I’m cruising at low rpms never seems to go away other then idle, car doesn’t feel any different or sluggish and I make the same boost I’ve always made so I’m not sure if I have a boost leak anywhere any help would be appreciated thank you
 
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