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    How a Muffler Works
    Description
    Mufflers rely on some cool technology to dim the roar of a car engine. Watch this HowStuffWorks video to learn the principles that make mufflers work.
    Mufflers rely on some cool technology to dim the roar of a car engine. Watch this HowStuffWorks vide... More
    Channel:Grab Networks on AOL
    Distributor:HowStuffWorks
    HowStuffWorks
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    Tags:mufflers car exhaust
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