The "R" is the evolition of the "Z" with more volume and a wider cone, making it the ideal complement for 70cc Sport/Race cylinders. It works well with 50cc and 70cc cylinders but its true efficiency becomes apparent with the 70cc Sport cylinders. For superb performance we recommend modifying the variator application.

• Yasuni Scooter "R" full exhaust system
• Improves scooter performance
• Power gain
• Requires a modification of the variator development
• Combines lightness and rigidity
• With certificate of approval
• Comes equipped with a good quality aluminium cylinder
• Exhaust approved for street use