K&N Air filter
Moderator: mikenmel08
K&N Air filter
Has anyone installed a K&N air filter and noticed a difference in MPG and more pep?
Re: K&N Air filter
I have one and haven't noticed any difference in use over 2 years. Just supposed to be more efficient than paper, no replacement costs, etc.. Not sure I would do it again.....
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- Scoobytruck Contributer
- Posts: 58
- Joined: Tue Sep 04, 2007 4:18 pm
- Location: Massachusetts
Re: K&N Air filter
I had the chance to do alittle experiment. I had to make two trip from MA to Conn for work and decided to take my 06 turbo baja. The first trip I used the standard subaru factory air filter and recorded 22mpg. The second trip just by chance I had changed to a K&N Filter and took the exact same route and recorded 24mpg.
I used cruise control and stayed at 75mph for most of the trip.
To date I have been averaging 22mpg commuting to work.
I used cruise control and stayed at 75mph for most of the trip.
To date I have been averaging 22mpg commuting to work.
Re: K&N Air filter
Interesting. I had one in my explorer back in the day. I was getting better mileage until the computer realize more air was getting in and readjusted the mixture.
Still not sure which way to go.
Thank you for your findings.
Still not sure which way to go.
Thank you for your findings.
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- Scoobytruck Master
- Posts: 111
- Joined: Tue Oct 30, 2007 4:31 am
- Location: Chesapeake, VA
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Re: K&N Air filter
i have one installed and haven't noted any change in mpg.
Re: K&N Air filter
I didn't really get a change in MPG but I did notice more pep. I don't know if that's because the one I took out was quite dirty but I feel it was a smart move to put one in. Plus they're good for a million miles so you might only have to change it once on a Subaru 

Last edited by Thacrudd on Tue Feb 10, 2009 7:28 am, edited 1 time in total.
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http://scoobytruck.com/bb/viewtopic.php ... 8057#p8057
My Baja Mods
http://scoobytruck.com/bb/viewtopic.php?f=2&t=1227
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Re: K&N Air filter
I just installed one, not for better mileage, but more for performance...altho' I don't expect V8-style horses to emerge...
Re: K&N Air filter
I finally bit the bullet and ordered one. Thanks. I ordered it too for the extra HP being I'm gonna pull a trailer. Every little bit helps. Trans cooler on the way too.