i was looking through the ps magazine and i came across this: the HAFC and PICC, the HAFC is guaranteed to increase your millage by 50% or more. check it out below. i mean it sounds too good to be true
http://www.preignitioncc.com/ps/index.htm
they have an example of 2000 Accord Ex going from 28.4 mpg to 55.9 mpg.
anybody heard about this or what? i wonder how much it will cost.