Kray Twinz

I was just at the music video soiree @ the SF Asian American film festival and I saw this video

http://www.kraytwinz.co.uk/ (plays automagically)

and the backing track is super familiar from any number of dubstep mixtapes I listened to last year! Does anyone have a name on this instrumental ? or can confirm that the "Kray Twinz" did not procuce this ?

thanks,
defchild