Did The 6637 Filter Today
I have to start by saying that this site is a bad influence on me. The more posts I read, the more money I spend.
2000 F250, this was an easy and amazing mod.
I just bought the truck and it has a dealer service sticker on the windshield. I say this because when I went to pull the OEM filter, the top was not on correctly. They did not have the top snapped into the three catches under the lip of the fender, they just had the two hasps latched.
Anyway the difference was immediately noticeable on my 40 mile roung trip to town.
Pillar gauges are next.