this is not the first 2-3 mpg claim on a K&N filter and I wonder what is true. some guys say they lost MPG, others no change, some ,5MPG...then there's the 2-3 MPG guys. I don't get it?
That's really something to think about. How can the same product vary in it's performance? I think the culprit is not in the filter, it's causing from somewhere.