Yasuni R Exhaust Vertical Minarelli '89-'01 Zuma Prebug
In terms of performance, the Yasuni R lies between The Yasuni Z and the Yasuni C16. Ideally suited for 50cc and 70cc sports and racing cylinders. To exploit its full potential, we recommend combining it with a 17.5mm carburetor (minimum) and a sports variator.
The "R" Does come with restrictors installed that will need to be removed for maximum performance gains, if you want us to do it for you click here