K&N Filter
Hotshot
Joined: Oct 2003
Posts: 13,011
Likes: 742
From: Here in No. Calif
Ive been runnind k-n for about a year, no apparant problems. It was much better than the stock one. My neighbor swears it doesn`t (k-n) allow enough air in though. My k-n just pops in stock box,not top of line setup. I`ll hookup tymar system in the future and see if theres a difference
Posting Guru
Joined: Oct 2002
Posts: 1,301
Likes: 1
From: Dededo, Guam
I vote against the K&N filter. K&N's are known for thier abilty to coat Mass Airflow sensors with the filter oil. Scroll down to the gasser forums and you will see. The gassers are Naturally Aspirated (no turbo or super charger). Our diesel engines are turbo charged and move way more air than the gassers. This indicates to me that some of the filter oil could get sucked out and coat the turbine blades in the turbo, coat the intake air pipes, and coat the intercooler (if equipped) and reduce its efficiency. I think i'll stick with a dry filter.
Last edited by jrs_big_ford_f150; Jan 25, 2004 at 11:36 AM.
Senior User
Joined: Jan 2003
Posts: 150
Likes: 0
From: Canyon Lake
Dry filters are great for city driving. But If your truck ever goes down a dusty road or visits a dusty construction site, or sees any sand then you need a oil type filter either the oil bath type or a oil impregnated. and the only way oil will go past the filter is if you don't follow the instructions on cleaning them. Thats why all OFF HWY racers use a K&N type filter.
Junior User
Joined: Aug 2003
Posts: 61
Likes: 0
Before we all get too crazy with the brand name battle, there has got to be something said for proper maintenance intervals. I mean leave any brand air filter on too long and you'll have problems. I too switched to a K&N with my stock airbox. I then started reading posts about "dusting" problems with the K&N as well as "oiling" issues. My stance is that if cleaned and oiled properly at the right intervals I haven't noticed either of these problems on my rig. I even checked and rechecked the air tube after the filter for any type of dusty build up or residue. I'm sure this doesn't sway the vote either way...just my two cents: -rip
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