What makes this Busa sound like a pissed off Twin?!

[rashad]

Im assuming from the airbox flapper in the beginning that he simply removed the lid, but would that alone make the bike sound that much different? Anyone know what is done?

 

[MikeSomething]

Probably removed the filter and top and he's sucking in all that dirty air from above the airbox... Def not a healthy sounding Busa.

 

[rashad]

thats what I figured, but i dont remember mine sounding that deep when I synced the throttle bodies...