The entire purpose of this exhaust must be the one thing they do here in this video: spin it around stupidly and blow out people's ear drums. Why else would you fix such a massive exhaust add on to a Kawasaki Ninja?
![](https://altdriver.com/wp-content/uploads/sites/2/2017/01/2017-1-13h.jpg?w=1056)
The entire purpose of this exhaust must be the one thing they do here in this video: spin it around stupidly and blow out people's ear drums. Why else would you fix such a massive exhaust add on to a Kawasaki Ninja?