KnN Filters...
Post Fiend
Joined: Jun 2006
Posts: 9,714
Likes: 2
From: White Mnt's,New Hampshire
when i bought my truck it had a K&N on it with a K&N box..my turbo wheel is a little duted but not bad..i through the K&N in the dumpster..(nobody wanted it even for free) and i put on a AFE stage2...
Posting Guru
Joined: Mar 2003
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Originally Posted by AngeliasDad
I saw a post the other day and they said not to use K/N filters.... just curiouse of why..... One was in my truck when I bought it . Should I get something else ?
Post Fiend
Joined: Jun 2004
Posts: 9,293
Likes: 10
From: Parker, CO
Originally Posted by MobeyDick
I have 243,500 miles on my K&N without a single issue with the filter!! You just have to be smarter then Dirt I Guess!!
"I never understood why anyone would want to buy a filter that only works when it's dirty. Does it make sense to filter dirt with dirt?"
Post Fiend
Joined: Mar 2007
Posts: 26,966
Likes: 50
From: Texas
Originally Posted by Pocket
The K&N filter is too pourous for our trucks. The PSD engine sucks in a lot of air, and the K&N filter simply lets in too much dirt. Over time this dirt can do horrible things.
Post Fiend
Joined: Feb 2007
Posts: 14,541
Likes: 2
From: Dallas-Ft. Worth
Originally Posted by travis dasher
I know the drop in filters are bad, but aren't alot of them. I know there are others on this site that are running K&N and have had no problems as well.
a couple thousand diesel owners cant be wrong
Not saying anyone is right or wrong but out of these couple thousand how many have actually ran K&N and have experienced problems?
I have been considering changing my intake for 2 reasons 1) my FIPK intake tube is made of plastic I want aluminum tubing 2) I want oiless filter. None of these reasons are because I have problems with it performance wise.
I do like how this topic gets a good discussion going
a couple thousand diesel owners cant be wrong
Not saying anyone is right or wrong but out of these couple thousand how many have actually ran K&N and have experienced problems?
I have been considering changing my intake for 2 reasons 1) my FIPK intake tube is made of plastic I want aluminum tubing 2) I want oiless filter. None of these reasons are because I have problems with it performance wise.
I do like how this topic gets a good discussion going
That was a very close friend -- it *WAS* the cone style, not the drop in. Notice the figer swipe through the dusted intake. My 6637 is staying on my truck.
I believe this is the site Tenn was trying to find:
http://www.duramax-diesel.com/spicer/index.htm
Joe
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Senior User
Joined: Apr 2007
Posts: 314
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From: Southern Colorado
Well, here is the link to the test report. At least I think this is what you're looking for.
http://www.duramax-diesel.com/spicer/index.htm
Richard
http://www.duramax-diesel.com/spicer/index.htm
Richard
Postmaster
Joined: Jun 2006
Posts: 2,647
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From: Fulltime RVer
And here's some proof of what a freshly serviced K&N cone "Aircharger" did to my new turbo compressor wheel in just 300 miles! Click for full size image That wheel was on a new rebuilt turbo, driven for 300 miles, and pulled to install a WW to correct surge, and the pitting was discovered that way, and I trashed the K&N and installed an AIS.
Senior User
Joined: Sep 2006
Posts: 357
Likes: 0
From: Kailua Hawaii
YEAH.... I took the K&N off about 3 months ago. When I removed the cone filter I had dirt inside the intake tube. I took the tube off and thankfully none went any further. I use the 6637 now but still have the K&N intake tube. So I used to be a K&N supporter and like a few of my old posts show I wanted proof that K&N doesnt filter well enough for our trucks. Well I got the proof and it was on my truck. No K&N ever again.
Senior User
Joined: Apr 2007
Posts: 302
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From: Backwoods Near Pittsburgh
so you guys are saying that i wasted my money buying that k&n i'm going to drive it so that i get about 500 miles on the filter then pll it and see what is in there then i'll make my decision...... The best experience is first hand experience it's not that i dont believe you guys i just want to see it for myself
Post Fiend
Joined: Jun 2006
Posts: 9,714
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From: White Mnt's,New Hampshire
Originally Posted by f350rebel
so you guys are saying that i wasted my money buying that k&n i'm going to drive it so that i get about 500 miles on the filter then pll it and see what is in there then i'll make my decision...... The best experience is first hand experience it's not that i dont believe you guys i just want to see it for myself
Postmaster
Joined: Jun 2006
Posts: 2,647
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From: Fulltime RVer
Originally Posted by f350rebel
so you guys are saying that i wasted my money buying that k&n i'm going to drive it so that i get about 500 miles on the filter then pll it and see what is in there then i'll make my decision...... The best experience is first hand experience it's not that i dont believe you guys i just want to see it for myself