K&N filters

Back in 1999 I spoke to the folks at Gibson exhaust company about the truck I had. They made 2 recommendations, 1 was for their cat back system (no brainer there) 2 to install a K&N at the same time. I did both, later I installed a better ignition system and the truck ran fine. I finally fabbed up one of the FIPK filter systems and that is what was on the truck until sold. I also run one on my 94 ranger, it has been on for over 200000 miles and the truck still runs fine and I dont clean it as often as they say so thats it. My son runs one on his F150 without any issues.

There are pros-cons to everything. It has been proven that the mafs do not fail due to the use of the oil on them, that was an issue many supposedly had, but as admitted to by some here it had to do with improper oiling! MAFS will fail, I had one go out on the ranger, no oil residue or anything in the tract they just sometimes fail. If you want to use one use it, but, remember they have to be fed and cared for appropriately. A lot of the new veh's have superior air filters (ford diesels in particular), but note they have limits to which they work. Aftermarkets use the K&N style some wet some not. SO pick what you want and go from there. Remember there are posters here pn these boards that say the OEMs make the very best and that the veh's cannot be improved by the aftermarket! So whatever you ask for, take responses with a grain of salt as that is really what they are worth