Is a K&N REALLY better than a cheap fram filter? I don't think so.
Joined: Dec 2008
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From: Puerto Rico
Is a K&N REALLY better than a cheap fram filter? I don't think so.
I took my car to the dyno a while back and did a few runs. I put down 206whp stock ( only had z-tube which I doubt does anything ) with a cheap fram air filter. I took the filter off and did another run and to my surprise I actually LOST 5whp. I would guess that the loss was more due to heat soak than anything else ( it was a consecutive run ) but that also shows me that aparently the cheap *** fram filter really isn't that bad at all.
So what's the point of getting a K&N? Thoughts?
So what's the point of getting a K&N? Thoughts?
The main benefit is that you save money in the long run because you can reuse them. they won't give you more hp and they do not filter as well as paper filters. I've used k&n's in the past with no problems at all. However, I plan on keeping my G for a while, so prefer the extra protection of paper filters.
next time run k&n first then the fram filter and see if you get the same results. there could be many reasons why a 5 hp was lost but just doing a single pull dyno on each doesnt prove anything.
i think the hp shouldnt have changed but the air flow would have
i think the hp shouldnt have changed but the air flow would have
Joined: Dec 2008
Posts: 1,901
Likes: 2
From: Puerto Rico
Actually it was spread across 5 runs.. 3 with the filter and 2 without. All of them were within 3-5whp.
I wouldn't use an oiled filter with a car that has a MAF sensor if you can avoid it. The oil ends up over time screwing up the MAF, and all you have to do is clean it but still it's a PITA.
Also the oiled filter doesn't trap the small particulate like a good quality dry filter will.
Why do you think AEM moved to dry filters?
Also the oiled filter doesn't trap the small particulate like a good quality dry filter will.
Why do you think AEM moved to dry filters?
IMHO, running the dyno test with the fram and then no filter at all doesn't validate or invalidate the K&N unit at all.
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Joined: Dec 2008
Posts: 1,901
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From: Puerto Rico
Why not? Do you think a K&N will be less restrictive than no filter at all? lol.
What do you think would happen if you ran a K&N and then no filter? Would those results invalidate your fram?
Joined: Dec 2008
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From: Puerto Rico
Why would they? The point was to see if my fram was a restriction...if it's not then I can assume that a K&N won't make it any better...it can only make it worse or stay the same.
Joined: Dec 2008
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From: Puerto Rico
Last edited by waijai; Apr 10, 2009 at 11:53 AM.



