E46Fanatics - View Single Post - Engine makes a "CHUFF" sound when I turn it off
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Old 05-31-2011, 08:42 PM   #6
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Originally Posted by phamine View Post
Thats the brake booster you're hearing when you turn the car off.
then why is mine louder since i have a k&n 57 intake... iirc, its the intake making that noise
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