Ho w to remove the silencer of a 2008 kawaski ninja2 50r

Kawasaki engineers spend years fine-tuning exhaust systems for best performance, while staying legal. If you did what you propose, not only will you lose power, but you will also eventually burn out your exhaust valves from over-heating due to improper air backflow. Sure it might sound cool. But, is it worth it? You're much better off buying an aftermarket pipe. Either way, you MUST have your bike professionally re-tuned for best performance and reliability. Otherwise, you're just trashing your bike.