Update: The Chiefs eventually did break the record!
Kansas City sets crowd noise record, we’re sorry for doubting you
Just a little louder, guys.
RECORD BROKEN! 137.5 DECIBELS! #LoudAndProud
— Kansas City Chiefs (@KCChiefs) October 13, 2013
YOU GONNA TAKE THAT SEAHAWKS FANS?!?!?! (Oh, also, KC is 6-0.)
Earlier this year,the Seattle Seahawks set a Guinness World Record for loudest sports crowd, reaching 136.6 decibels in a game against the 49ers. The Kansas City Chiefs hoped to break that record at Arrowhead Stadium this Sunday against the Raiders, announcing a Guinness representative would be on hand for the game.
Their early attempts... well... came up a bit short. 
.
Apparently, it got louder:
The latest crowd noise reading is 132.5 DB. Almost there! Louder! #LoudAndProud #Chiefs
— Kansas City Chiefs (@KCChiefs) October 13, 2013
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