i wanna get one of these for my 200sx. I forget the site where i found it, could anyone help. It says that it makes it a 215cc. i wanna get it so i can spin my tsls better in the mud and make it faster when i put my bandits on it. is the power increase much better or is it not really worth it. it cost like a 123dollars. And if i do get it i have to get it machined right? i am not to sure about the process of going bigger with pistons. Also since i mainly use this bike to mud should i gear it down lower if so what sprocket combo should i use

thanks

 

It will give you a signifgant boost on your lowend over stock. You could probbly take it to a dealer or motorcycle shop to get it done.