Chiefs Break Seahawks' Guinness Noise Record Arrowhead Stadium is once again the loudest outdoor venue in sports.
Kansas City Chiefs Fans Will Attempt To Break Seahawks' Record For Crowd Noise - AgainKansas City Chiefs fans are looking to knock the 12th man out of the Guinness Book Of World Records when it comes to crowd noise -- again
Chiefs Fans Break Noise Record Set At CenturyLink FieldThe Kansas City Chiefs broke the world record for an outdoor sports stadium in their 24-7 win over Oakland on Sunday when they reached 137.5 decibels in the closing minutes.

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