Huge Building Explosion at 2500fps - The Slow Mo GuysGav and Dan celebrate the release of Battlefield 4 by setting off the biggest explosion they have ever done. Check out Battlefield 4 here - http://bit.ly/Huu2aw Follow Gav on Twitter - https://twitter.com/GavinFree/ Follow Dan on Twitter - https://twitter.com/DanielGruchy/ Filmed using a Phantom Flex at 2500fps Huge Building Explosion at 2500fps - The Slow Mo Guys
