Originally Posted by
ajk148700
so i have been messing around with my car to see if i drove "proper" if i would get some good numbers my car has ngk platinum spark plugs and performance wire set a full cold air intakeherry bomb thrush pipe in place of rear muffler and im getting about 36+ city and mind blowing 50+ highway shifting at 1500-2000 rpms and not speeding doing posted speed limits i just got home and im at about 120 miles on my trip and just less then the with of the gauge needle less gas i plan to do a hho system in my car over the winter has anyone else seen mpgs like this?