Share Vulcan XH558 Awesome Howl Sounds.04:33 0 Share 0 Likes 0 Dislikes Published on March 14, 2017 When the engines exceed 92% power, the Vulcan makes this cool howl sound. Category: #Video Submitted by: Admin Tags:Awesome, Howl, Sounds, Vulcan, XH558 About The Author Admin Related Posts