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. Tuning Level: Racing 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. Racing products are designed for a more extreme uses and are developed primarily for racing. Whether you stay at 50cc or increase the displacement, the corresponding Racing parts produce much higher performance than the original parts in order to achieve maximum power. Technical details Exhaust Polini Evolution Yamaha TZR / Rieju RS2 Article no. P200.0404 EAN 8054705115004 Weight 2,64 kg Series Evolution Brand Polini Product type Exhaust Tuning level Sport, Racing Homologation No Exhaust mount Low Flange diameter 25mm, 28mm, 35mm Exhaust Polini Evolution Yamaha TZR / Rieju RS2, powerful low mount exhaust for Aprilia, Rieju and Yamaha. We recommend using it with 50cc / 70cc sport or even racing cylinders. It is a classic tuning exhaust with hand-welded resonance chamber and a black aluminium silencer. The impressive increase in power affects the entire rpm range, acceleration and top speed are noticeably increased. The exhaust comes with all necessary accessories, including 3 different flanges (25mm, 28mm, 35mm). Scope of delivery as shown in the photo. Without homologation.