What's new

K&N Air Filter Question

JBoss

New member
Joined
Oct 18, 2023
Messages
1
Reaction score
1
Points
3
Location
Georgia
Anyone put in a K&N air filter replace from the AC original? Did it through any codes? I did it on my HD diesel and I had all kinds of codes which had me remove it…

Also any performance difference?
 

Attachments

  • IMG_4520.jpeg
    IMG_4520.jpeg
    541.1 KB · Views: 39
Anyone put in a K&N air filter replace from the AC original? Did it through any codes? I did it on my HD diesel and I had all kinds of codes which had me remove it…

Also any performance difference?
I did the full K&N intake. It didn't throw any diagnostic codes, but I did get a check air filter warning on my instrument cluster, similar to a seatbelt warning that comes up if you aren't buckled. You can go into your display settings on your instrument cluster and turn off the warning indefinitely. That's all I had to do on mine, and still no check engine lights to this day. Just a filter replacement might not even give you that much grief.
 
Anyone put in a K&N air filter replace from the AC original? Did it through any codes? I did it on my HD diesel and I had all kinds of codes which had me remove it…

Also any performance difference?
Did an S&B CAI without thrown codes(as

clstark7 stated)​

but you'll want to disable the "filter life" in the dashboard display and keep track in service records or a date sticker w/mi. on your filter.
 
I went with the easy compromise. I'm running the drop in K&N oiled air filter. The TB comes with an oversized intake system so I spent $75.00 for a lifetime filter. No codes, no hassles, no problems, not $500 bucks. I just wanted to know I had the best filter for engine protection as I am often in hateful dusty desert conditions. Now it seems like "does it provide better protection" is as debatable as "does K&N ad HP?" There are YouTube videos showing even the drop in filter can gain 5HP on a dyno. Who knows? I don't feel or even hear any difference. This is my first oil filter Im not even sure it was the right choice. I would love to hear more from you guys.

Steve
 
you missed plugging something in or have a vacuum leak somehow.

the filter itself is questionable, never run an oiled filter.

that said, K&N does FLOW but it also filters less in doing so...well proven over the years. they spend $$$ on advertising.
 
you missed plugging something in or have a vacuum leak somehow.

the filter itself is questionable, never run an oiled filter.

that said, K&N does FLOW but it also filters less in doing so...well proven over the years. they spend $$$ on advertising.
Thats what Im afraid of, less filtation. It may not have been the best choice for my type of use.....

Steve
 

Most Reactions

Back
Top