I installed CNG kit over the weekend and so far so good. I am enjoying the ride and you guys will be surprised that it wont do any knocking on CNG which it normally does on Petrol. So far my car is in testing phase meaning that I am calculating the mileage and stuff. But again the pick and response time is pretty good.
For all those who says you will ruin your engine life or City 2010 dont deserve CNG and bla bla bla. My answer will be "I just can not afford current petrol prices these days, as I have to run 100km/day."
There you go with the pictures.
The Engine Bay
The CNG Kit setup, right under the fender.
Boot space after putting in the Cylinder.
That is the Cylinder, I colored it Silver. I wish if I could have polish metal color but that was the only one available at CNG conversion center.