K&N bashing - Ford Powerstroke Diesel Forum
6.4L Performance Parts Discussion What has or has not worked for you?

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post #1 of 38 Old 02-08-2014, 05:04 PM Thread Starter
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K&N bashing

I've noticed that K&N air cleaners take quite a beating on these forums with statements like 'let too much dirt through' or 'K&N and turbos don't go together'. What's conspicuously absent is any concrete data to support these statements. I'm not necessarily a K&N defender but I'm also not one to jump on the rumor bandwagon. Can anyone cite any concrete data/examples of K&N's failures?
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post #2 of 38 Old 02-08-2014, 06:20 PM
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When I was in the atv racing and etc there was some tests that used a white substance and black light and found the k&n let a lot through but I don't remember who done it and I'm not looking it up. It's not really that big a deal if you feel the need to run k&n then do so if not that's fine too. It's your truck

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post #3 of 38 Old 02-08-2014, 08:18 PM Thread Starter
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You 'don't remember who done it' and you're 'not liking it up'? That's not very convincing. And by the way, I know my truck is my truck and I'm not looking for anyone's approval to use K&N. I haven't decided between AFE, S&B, and K&N. I'm simply wondering whether all the criticism of K&N is actually justified.
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post #4 of 38 Old 02-09-2014, 05:49 AM
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Ok ,so he had some type o's.

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post #5 of 38 Old 02-09-2014, 07:41 AM
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^^damn sassy. no proof or test results or anything, but ive seen diesels suck those things white, thats personally why i wont run them

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post #6 of 38 Old 02-09-2014, 08:03 AM
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Originally Posted by azor View Post
You 'don't remember who done it' and you're 'not liking it up'? That's not very convincing. And by the way, I know my truck is my truck and I'm not looking for anyone's approval to use K&N. I haven't decided between AFE, S&B, and K&N. I'm simply wondering whether all the criticism of K&N is actually justified.
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post #7 of 38 Old 02-09-2014, 09:38 AM
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K&N Bad for engines?? - Corvette Forum

Debunking the K&N Myth - Why OEM is Better : Nissan Articles

Just a quick google search

2010 CC/SB FX4 Lariat.. Tuned By Eric@IDP and Matt@Gearhead

Thinking about getting rid of the stock 6.7 turbo?
Check this out... and research before buying



http://www.powerstroke.org/forum/6-7...ustration.html

http://www.powerstroke.org/forum/6-7...round-2-a.html
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post #8 of 38 Old 02-09-2014, 06:43 PM Thread Starter
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Ok, we got the smartassiness out of our system. According to the ten year old data that 'drunk' referred me to, AFE performed poorly but is very popular among Powerstroke owners. I think I'll stick with the stock air cleaner until it shows that it can't hang with my 250 hp Spartan tune.
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post #9 of 38 Old 02-09-2014, 06:49 PM
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According to K&N they now have as many pleats as AFe, and just as good filtering.

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post #10 of 38 Old 02-09-2014, 08:01 PM
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In my experience with vehicles, the most popular parts are the most popular for good reason. They hold up and they produce the best results. That being said, I know a guy running a K&N on his truck and has no complaints about it. When the time comes for me, I will be doing either the S&B or the No Limits intake.
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