Our exhaust silencer Arrow Thunder for Yamaha WR 125 motorcycles consists of a high quality aluminium shell and is equipped with a carbon end cap. The muffler has a decibel killer insert, which is secured by a circlip, and a stainless steel retaining clip. For this purpose the Arrow rear silencer is approved according to EG-BE standard. The sound of this rear silencer is quite comparable to other versions. In terms of appearance, the Arrow rear silencer can be compared to a standard kit element and is therefore very natural in its overall appearance. Especially practical is the slip-on version, where you can easily attach the silencer to the exhaust system. An additional racing manifold further enhances the performance.