DESCRIPTION OF CNG KIT IN DELHI CNG Kits Price Depends on CNG Kit Types. Conventional CNG Kits are Cheaper than Automatic Sequential CNG Kits due its technology. More Than 20 Sequential & Conventional CNG Kits are available in Market ranging from 25k to 55k. Sequential Kits: Though its best to go for Fitment of Original OBD-2 Compliant CNG Kit which costs around Rs 55000 but in market Sequential CNG Kit costs in Range of Rs. 33, 000 to 37, 000 including Installation. Modern Age Engines are well compatible with Sequential CNG Kit. Imported & Government Approved Sequential CNG Kits Fitting cost from 30k+GST (18-28%) with 12KG Cyinder and without CKP & Advancer. Some Car Engine require advance or CKP which is Rs.1500 to Rs.2000 in cost Conventional CNG Kits Old kits / Conventional CNG Kits are also available in Market to install CNG Kits in Euro-1, Euro-II Engines. Cost of Installation of Conventional CNG Kits ranges from 25K to 30K with 12KG Cylinder.