Originally Posted by Unzapato
My point is dirt in the filter will restrict airflow. If not, why do you ever have to change/clean it? The less restrictive filter will remain the less restrictive with the same amount of dirt packed into it. If you are saying there is no point at which a clogged filter restricts airflow then you are dreadfully wrong. By your logic one should never have to change the factory filter.
Anyway, find a paper element filter with factory specs that is cleanable/reusable that is cheaper than both and I'm in there like swimwear.
Otherwise: 1x $54 K&N > 1x $57 AER > Many x $24 Fram filters over the lifetime of the truck.
After reading the link that I provided on post 77 I have decided to go 60k miles interval before changing the filter for me. They found no change in MPG but reduction (7%) power with filters that are 2-3 times more clogged than a filter with 30k of use. A dirty filter actually filters more, which is a good thing. No argument a very dirty
filter will reduce peak power, but not with your typical 30K interval.
With my 2.7L I don't care if I lose a few HP at 5500rpm, I don't see that engine speed anyway. I picked up 3 oem filters at the dealer for $14.99 each, that's 240k for $45 including the original.