Hyosung/TGB 70cc Franco Morini cylinder kit for Hyosung and TGB scooters and R50X to make them real screamers more than they are now plus adding pipe at same time gives you a complete upgrade.
Franco Morini engines are used in all Hyosung SF Ralley and TGB Laser, 50RX scooters so this is the kit for those scooters using this engine such as Hyosung and TGB.
Remember not upgrading exhaust also you will not get full power but still works.