The Carrera 16 is the little brother of the Yasuni Carrera 21 scooter exhaust with a little less volume and a longer exhaust body. It is characterised by its quality and some good details like the multiple reinforcements on vibration-sensitive locations. It has a high top speed, making it an ideal exhaust for engines that are designed for high speeds. Perfect system for 50cc engines with pure racing set-up, 70cc sports and Mid-Race cylinder. The table in Figure 2 provides additional guidance on which exhaust cylinders the Yasuni fits. The exhaust system is equipped with a high quality aluminium silencers. Fits Minarelli engines with horizontal cylinder.