Exhaust Yasuni Z Yamaha Aerox / MBK Nitro aluminium

Yasuni Z

The popular Z exhaust from the Yasuni brand really needs no further introduction.

The Spanish brand was originally known in MotoGP, when two-strokes dominated the discipline, but has also gained an excellent reputation with its high-quality exhausts for 50cc scooters, including the Yasuni Z.

Yasuni Z performance

One of the first steps in scooter tuning is usually to replace the original exhaust with a tuning exhaust; the original cylinder or a 50cc cylinder with comparable performance is retained.
The Yasuni Z is the perfect exhaust for this engine setup.

If you are switching to a more powerful configuration (70cc or racing cylinder), you should consider other Yasuni systems, ranging from R to C30.

Exhaust scooter, moped, motorcycle

The exhaust has a major influence on the performance of scooters and mopeds. By replacing the original with a tuning exhaust, you can improve the gas flow and increase the engine power.

exhaust parts

• The headpipe or header is the connection between cylinder and exhaust, and an exhaust gasket provides the necessary seal. In street-legal systems, the headpipe is equipped with a legally required restriction. Some people remove this restrictor to increase power.
• The actual exhaust body or expansion chamber is connected to the header pipe. In a classic 2-stroke expansion chamber type exhaust, gas pressure waves are used to improve engine performance.
• At the end there us the silencer or muffler that discharges the exhaust gases and, with the help of damping wool, also reduces the noise generated by the vehicle.

Replacing the exhaust

For 2-stroke engines, various settings and components usually need to be adjusted when the original exhaust is replaced with a tuning version. These changes include:

• Adjusting the carburetor by replacing the main jet.
• Upgrading the clutch or replacing the clutch springs.
• For scooters, it may be necessary to reduce the weight of the variator weights.

Tuning Level: Sport

We categorize our products into different performance levels  Original, Sport, Racing and High End , so that our customers can choose the right parts for their setup. It is really important to combine parts that belong to the same tuning level, this is especially true for cylinders, crankshafts and exhausts.

The products listed under Sport yield better performance than Original parts. They may have technical differences, such as the use of higher quality materials, a larger displacement or a performance-enhancing design. They are suitable for everyday use and have a long service life.