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  #1  
Old 01-17-2008, 11:58 PM
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Question K&N Air filter?

Has anybody installed a K&N in the EXPY? If so what kind of difference are you seeing if any?








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  #2  
Old 01-18-2008, 01:55 AM
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I am too worried about messing up the MAF.
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  #3  
Old 01-18-2008, 02:06 AM
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KEEP THE PAPER FILTER, REPLACE OFTEN.
You will find little gains in all aspects.
KEEP PAPER FILTER, A tuner will problably serve you better.
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Old 01-18-2008, 11:57 AM
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I used to be a huge beliver in K and N. While I think the filter itself is build well and they have their place in cold air intakes, etc. I think that you have to have the perfect oil content in the filter to get a good balance between airflow and filtration. Too much oil, restricted airflow, dirty MAF sensor, etc. Not enough oil, great airflow, not great filtration.
I am sticking with paper for now. Prices are high, but they should come down.

Oh, and on the two trucks I had KandN filters on, i noticed no increase in anything.
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Old 01-18-2008, 12:09 PM
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Thanks for the info.
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Old 01-18-2008, 12:47 PM
07EXPYEL 07EXPYEL is offline
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I've got the K&N drop in and noticed no increase in milage. I did however have no issues pulling a #5,500 30' travel trailer between Phoenix & SanDiego against the wind both ways!
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Old 01-18-2008, 12:57 PM
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i have the drop in K&N and have noticed better throttle response slightly. Plus it was $30 and the paper ones are close to $20 and are not readily available near me except at the dealership.

I have used K&N type filters in my last 3 cars/trucks and have never had an issue, and I usually keep my trucks to at least 100K.

Personally i wish someone would come out with a cold air intake so i can remove the crappy stock piping. Has anyone taken it off and looked at how restrictive it is. It is unbelievable.
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Old 01-18-2008, 01:04 PM
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I wonder? In my last truck 2004 yukon i put a drop in K&N and also had flowmaster dual exhaust and it made a huge difference in kiddy up and MPG.....I was just looking at the gibson dual exhaust and CAI from K&N.
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  #9  
Old 01-18-2008, 03:06 PM
carbonmetallic carbonmetallic is offline
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Quote:
Originally Posted by khadma
KEEP THE PAPER FILTER, REPLACE OFTEN.
You will find little gains in all aspects.
KEEP PAPER FILTER, A tuner will problably serve you better.
arent you the guy who said dont modify your new truck on the 07 expedition lift thread?

You say to keep the paper filter and add a tuner, tuners void the warranty alot quicker than any suspension changes.

Plus there are no tuners available yet for the 07 expedition, I have already checked, plus if you do get a tuner you will need more air flow than that paper filter will ever give you.
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Old 01-18-2008, 03:40 PM
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C'mon, paper will move more air than the TB can.
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Old 01-18-2008, 04:47 PM
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Arrow

No i didn't say that, that was someone else.











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2007 EXPY Eddie Bauer,4x4, white, Tow Pkg, conv pkg........

Last edited by jaru018; 01-18-2008 at 04:50 PM.
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Old 01-18-2008, 04:53 PM
seeyalater seeyalater is offline
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I added a drop-in K&N and gained almost 1 mpg. it's worth the $30.
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Old 01-18-2008, 04:58 PM
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Quote:
Originally Posted by seeyalater
I added a drop-in K&N and gained almost 1 mpg. it's worth the $30.
plus you dont have to keep buying $20 paper ones.
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  #14  
Old 01-18-2008, 05:02 PM
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Thumbs up

I think I'm gonna go with the K&N CAI and dual Gibson performance Exhaust.








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2007 EXPY Eddie Bauer,4x4, white, Tow Pkg, conv pkg........
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  #15  
Old 01-18-2008, 05:06 PM
carbonmetallic carbonmetallic is offline
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never mind, K&N does have a cai. Smart way to make it, clicking on top of the existing box, that way you dont have to cut it out.

Last edited by carbonmetallic; 01-18-2008 at 05:14 PM.
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Old 01-18-2008, 05:06 PM
 
 
 
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