@jz
bro which plugs are best for cng+petrol using cars...car is EFi.......stock..but wanna gud performance from it
i saw NGK extreme + NGK laser at CANADIAN TYRE....in ontario
well there were huge collection of pulgs from NGK+ other brands....
whts da function of 3 or 4 tip plugs what r they meant for??????????
plz help me in seleting the best pulgs for ma car.... thnx BRO