CGS sequential injection system is for Bi-fuel (Gasoline-CNG or Gasoline-LPG) conversion system according to the engine conditions automatically. 1. Highest efficiency in fuel consumption 2. Highest Endurance 3. Advanced environmental products according to Euro-series (I,II, III, IV) 4. 100% designed by CGS according to global standard 5. Quality certification (ECE R110, ISO 15500)