The RS-II Racing Exhaust Tecnigas is an evolution of the well-known RS70 system. Grey anodized aluminium silencer. The diameter of the exhaust duct has been changed, and the structure of the expansion chamber has been updated. The sound level was also reduced. In conjunction with a 70cc cylinder, the RS-II exhaust a very good choice in the lower price range. Those looking for performance will definitely find it here. Warning, the power band is over 10,000 RPM. If the vehicle is equipped with a speed-restricted CDI unit, must be changed to an unrestricted CDI version in order to use the full potential of the system. Tecnigas offers an exhaust designed for 70cc Sport to Mid Race Cylinder. The chrome version of Tecnigas RS-II is a real winner optically and resistant to corrosion.