High End Racing exhaust system Malossi suitable for Testa R. Cylinder Series 70cc (Piaggio C-ONE motor). Due to the flange connection at the exhaust manifold / cylinder, only the MHR III exhaust system for these cylinders is suitable. Other exhaust systems need to be adapted before being fitted to these cylinders. However, it`s worth noting that Malossi has already worked tirelessly on tuning the Testa R and the Team III system is already perfectly matched to the cylinder. Whether you then choose a different system is up to you. Matching cylinder: M.3115901