... 1, We have enough stock for Map Sensor 2, We offer all the spare parts for CNG conversion kit and LPG ... ,4,5,6,8,10 cylinders car,also for motorcycle ect.sequential injection system and mixer feedback ... cylinders with various specifications and types. The outer diameter of liners is from 229mm to 406mm and other dimensions ... 2,3 is included, also we supply other industry and family use gas cylinders .