The Malossi 70ccm cylinder kit is a good replacement for the original kit and raises the performance considerably. The cylinder is made of cast iron and has larger flushing channels and exhaust port than the original. A new control box is included, which is configured for the kit. A Denso U31ET-R or NGK CPR8E spark plug must be used for this cylinder kit. The cylinder kit is delivered complete incl. gaskets, piston rings, etc.