@ poster
bro CNG is basically a dry gas and the engine is bassically made for petrol so CNG is a sort of jugaar for the engine. the first step is that u shud remove the cng kit n everything regarding CNG.
and if u want to run ur engine on CNG and increase performance...
then here r a few tips...
- change ur intake manifold to a custom made polished manifold from both sides. inner and outer side must b chrome polished. or it shud be made from stainless steel.
then u must install performance headers(usually known as the custom exhaust manifold). This also must b of stainless steel and get a free flow piping frm the headers to the tail and after that install a gud quality muffler at the last. Free flow piping means no dholki from engine to tha tail pipe. ok.
now cum 2 the spark plugs. u just get DENSO Platinum or Iridium plugs wid single tip.... there is no need to get BOSCH Super 4, coz ur ignition system is stock. if u r going to change the ignition system with a MSD one, then u need the bosh super 4 spark plugs with 4 tips or any higher quality. but still u don need that.
NOW U INSTALL ONE OF THE AIR FILTERS LIKE SHOWN IN THE PICTURE....

and after that get ur car tuned from a professional person. thats it....
according 2 ur wish, u will feel a great difference.......
here is the picture of MSD(Multiple Spark Discharge) Ignition system installed in a civic

I m myself an automobile technician. I hav worked 1 year in suzuki dealership and now i m working in toyota dealership......
I think my sugessions will be helpful
thanks
Danish
0333-3738698

