With the Cross HM MAX exhaust Yasuni bridges the gap between a defined benefit moped exhaust for 50cc or 70cc displacement and practicality. Coupled with the excellent build quality of Yasuni and the wide range of applications, this system is a very good choice for those who like a little more there, but want to set is not equal to maximum power. Performance-wise identical to the SPR3 or HMR2 system, but with headers including the cylinder in motocross style. The overview in Figure 2 helps to assess the application area of ​​Yasuni Cross HM MAX exhaust system better. This tuning exhaust is equipped with a high-quality fiber-reinforced carbon silencer. All parts required for installation are included. Fits different mopeds with Derbi and Morini engines. 28mm diameter outlet