The Gianelli company has been producing high-quality and efficient exhaust systems since 1972. These are suitable for mopeds, quads and many other vehicles. During the production of the systems, the know-how is always anxious to unite an attractive appearance with an optimal performance. For the Yamaha WR 125, Gianelli manufactures a stainless steel exhaust system. This gives your machine an unmistakably clear sound. The power of 1 HP is within the norm. In this system no catalytic converter is installed and is therefore delivered by us without.