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The Yasuni Carrera 21 (C21) exhaust system is a premium high-performance exhaust designed for 50cc scooters equipped with at least a 70cc racing cylinder. Compared to the Yasuni Carrera 20, the C21 features a slightly longer expansion chamber, providing stronger torque and exceptional performance in the mid to high RPM range—perfect for explosive acceleration, especially when powering out of corners.
Engineered for high-revving setups up to 14,000 rpm, the C21 is built for track use and delivers impressive response and top-end power on short straights and tight bends.
All necessary mounting components are included for easy installation.
Specifications Yasuni C21 Racing Exhaust :
Segment-welded racing exhaust
Silencer: Purple
Mounting bracket included
Suitable for horizontal Minarelli engines (Yamaha Aerox, Malaguti F12, and others)
Not approved for road use