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K & N Filter worth the $$$



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Old 02-24-2005, 12:50 AM   #1
 
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Lifted78Chevy is infamous around these parts
K & N Filter worth the $$$

hey guys i ordered a K&N air filter for my truck.....14 inch element...but are they worth the money or are they all bs about the gains you get from using one??? i was just wondering what yall guys had to say about the subject.
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Old 02-24-2005, 07:14 AM   #2
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i run one because of the cost of my air filter. by the time 50000 miles is up i will be spent more on filters then i did just buying the k&n.
performance though i didn't see much but my motor is a little 3.0l.
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Old 02-24-2005, 09:02 AM   #3
 
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I'm running one on a 04.5 unlimited with the 4.0 it made a good deal of difference. A bit more power(felt not measured) and a lot smoother throttle response.
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Old 02-24-2005, 09:28 AM   #4
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I run a AFE (Advanced Flow Engineering) Stage 2 on my diesel below. In the diesel community, the K&N's are not much-loved, primarily due to anecdotal stories about people with 'dusted' engines due to insufficient filtration from the filtration media. On my particular setup, I use a more expensive version of the filter, plus a pre-filter sleeve.

I always felt the K&N intake kits were good and I think the benefits of higher air flow in an open-element setup are clear. They work most convincingly, in terms of power gains, if you pair the intake upgrade with a corresponding exhaust upgrade. On my oil burner, that means a 4" mandrel stainless from the turbo back. On a gas motor, that would translate into headers and a quality 3" exhaust and high-flow mufflers. Remember, you have to open up the breathing on both ends. Once that is done, I suggest more fuel! Now that you have better air flow, your engine should be able to, generally speaking, handle more fuel, which means more power. If it is for your '78, I'm assuming there are no computers involved and we are dealing with a carb setup. I am, by no stretch of the imagination, a carb guy, but perhaps someone here can chime in on whether you can richen up a bit and maintain reasonable stoichiometry. If this is a computer vehicle, consider a programmer or chip to complement your intake/exhaust mods.

If you are worried about filtration quality, slap a pre-filter sleeve on there. You can booty-fab a pre-filter sleeve from quality panty-hose.
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Old 02-24-2005, 01:25 PM   #5
 
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Puleezzeee no butts on the intake. I did a cat-back also. got rid of 3 foot of factory muffler and went up .75 inches on the piping. I'm also running a prefilter, mostly because it really keeps the water off. This however doesn't allow for over the hood swimming.
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Old 02-25-2005, 10:15 PM   #6
 
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I've got a K&N on mine, first time I ever heard my tires chirp was the night I put it on I like it, oil stays clean, engine runs good, and it makes the old paper filter I had in there before look horrible.
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