hi buddy! well gurus can answer your question but i want to know why dont you buy company fitted wagonr cng or lpg??
1Cost of company fitted cng 60,000 Rs . So it cost more . Lpg station is no near close in Gujarat.
2. Now a days cost of CNG fuel increased so Sequential CNG kit also not helpfull. (now days cng ruining cost 2 to 2.25 rs per KM. if further increase batter to run on petrol . Some time rate of petrol go down but CNG price never go down since 10 years.)
3. IF running cost of near to petrol and CNG why should carry 70 KGS more weigh of CNG Kit ? In that case Closed loop CNG kit essay remove compare to Sequential CNG.