Originally Posted by Bjornviken
Originally Posted by clinebarger
The poor filtration alone should be enough reason not to use them. The only reason it would contaminate the MAF is because over oiling of the filter media.
I worked at a speed shop for 15 years, K&N filters were a BIG seller but the fine dirt I found post filter during a service/recharge in the intake tract is unacceptable. I saw more than a few Diesel truck engines get ruined from "dusting", Though they were usually worked in the oil fields of West Texas. K&N wouldn't stand behind their product.
Wounder why my engine havent "blow up" from using K&N?
It won't blow up, it is just "more worn out" from "dusting".
I used a K&N for 4 months on a daily in the burbs of a large city, so no dirt roads. I added lite oil in my intake track to catch any dust, and sure as smit, fine dirt where I put the oil. That K&N went in the trash. I cleaned and ran the oiled intake area again and nothing after a year. I now just change out to new filters more often to keep the flow rate up and call it a day. That was 30 years ago they may make them better now?