Originally Posted by kurtisberry
Put my K & N's on at 25 K, now at 50 K. No difference in power. Mileage dropped 1 MPG. Going to take them off and see if the mileage comes back.
Have you done the clean and oiling kit?
If not, that is more than likely why you are dropping MPGs, I believe they are supposed to be done every 5-10K depending on driving conditions...