Flames are one thing, but when that thing hits the limiter, its spitting out shards of something thats glowing. That cant seem right? Maybe bits of cat or piston....lol Its a dope bike, but that dont look right. Skip to 3:14 for the runs.
there is definitely no cats on that exhaust. not sure what is flying out of that beast maybe some of the baffling from the inside of the "can", but damn! that exhaust looks straight thru