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Yasuni For the purposes of this Regulation, the following definitions shall apply:

(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
(edit with the Customer Reassurance module)
Yasuni Exhaust valve 16 / C16 Red fortuna by Piaggio (Zip/ Typhoon by Piaggio), powerful racing exhaust by renlit_Latned Spanlit_Latner Yasuni. The welded sheet metal expansion chamber is complemented by an aluminium silencer. Yasuni decided to put a new spin on it and launched a "Fortuna Red" series with a great looking satin matte red silencer.
The C16 was originally developed for Endurance racing; it has a lot of torque and power at mid rpm range and maintains power even at high rpm. We recommend combining it with a 50cc or 70cc racing or even Hyper Racing cylinder for more torque and better acceleration. Not recommended for standard cylinders.
As a racing exhaust, it is of course for the race track and not street-legal.