IS F (2008-2014) Discussion topics related to the IS F model

Stock ISF air filter

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Old 01-18-18, 04:04 AM
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Greatest
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Default Stock ISF air filter

They usually cost between 50-60$. What change interval are most using? I know many have changed to Toms. How often is that cleaned and how long does it last?

I saw in one of the long oil threads(the Blackstone one?) that Danial recommend using a cheaper one and changing it more often as a more effective way of maintaining your engine.

Id like some opinions on what most of you are doing.

Thanks
Old 01-18-18, 09:37 AM
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LexusfanVA
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I put one year/~27k on my tom's filter and recently took it out to inspect/clean. It looked like new tbh.
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Old 01-18-18, 10:17 AM
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Diesel350
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You can get standard replacents of the air filters for $25 on auto sites like Rock Auto.
Old 01-18-18, 12:23 PM
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Originally Posted by Diesel350
You can get standard replacents of the air filters for $25 on auto sites like Rock Auto.
Are they inferior? Do you change it more often?
Old 01-18-18, 12:34 PM
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Diesel350
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Originally Posted by Greatest
Are they inferior? Do you change it more often?
Nope, same exact as OEM ones. Same interval change.
Old 01-18-18, 02:08 PM
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3nergiz3d
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Been buying the WIX filters that Lobux recommended on the forums.
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Old 01-18-18, 04:26 PM
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ISFCOBRA
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i bought 2 afe power dry air filters so i can always have a clean in the car. the cabin filter is stock.
Old 01-18-18, 04:32 PM
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Originally Posted by 3nergiz3d
Been buying the WIX filters that Lobux recommended on the forums.
Is that the wix 41950? How often do you change it?
Old 01-18-18, 07:28 PM
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15k miles for me
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Old 01-19-18, 09:51 AM
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I ran a stock then a K&N and now have a TOM'S. I don't recall any noticeable difference.
Old 01-19-18, 11:54 AM
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lorenr
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Looks like the Wix air filter is a 49150.

Try the look up at: http://www.wixfilters.com/Lookup/App...aspx?Section=1

Probably the best kept secret in filters for anything, is Baldwin filters. You don't hear a lot about them except where someone doesn't want to take a chance. Read that as marine applications and/or heavy duty trucks

Last edited by lorenr; 01-19-18 at 11:58 AM.
Old 01-19-18, 11:56 AM
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I run an AFE dry filter and I check it every few months, clean as necessary
Old 01-19-18, 10:12 PM
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I use OEM filters. I don't recall recommending WIX based on personal experience. I know they make good stuff, but I haven't run their air filters in my cars.

I generally don't like aftermarket filters. Too many bad experiences (see my signature) with supposed performance enhancing junk that didn't.

Cabin air filters, sure no big deal. Engine air filters - you will very likely find an OEM filter in my cars. I don't trust a filter you can clean because all you can clean out of it are the big pieces. Oiled filters are crap for long engine service life, I don't care who makes them, and they have a tendency to foul MAF sensors if they are even slight over-oiled.

Besides, there are only two issues you can have with an air filter - it doesn't adequately protect the engine from small silicates, OR it gets clogged and reduces maximum power. The only reason for frequent engine air filter changes is to ensure you can always get maximum power from your engine at WOT. Otherwise, it's just another operating cost you can manage by deciding when performance is sufficiently degraded to warrant spending money on a new one. It won't impact fuel economy or driveability under 99% of normal use.
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Old 01-20-18, 12:05 AM
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Originally Posted by lobuxracer
I use OEM filters. I don't recall recommending WIX based on personal experience. I know they make good stuff, but I haven't run their air filters in my cars.

I generally don't like aftermarket filters. Too many bad experiences (see my signature) with supposed performance enhancing junk that didn't.

Cabin air filters, sure no big deal. Engine air filters - you will very likely find an OEM filter in my cars. I don't trust a filter you can clean because all you can clean out of it are the big pieces. Oiled filters are crap for long engine service life, I don't care who makes them, and they have a tendency to foul MAF sensors if they are even slight over-oiled.



Besides, there are only two issues you can have with an air filter - it doesn't adequately protect the engine from small silicates, OR it gets clogged and reduces maximum power. The only reason for frequent engine air filter changes is to ensure you can always get maximum power from your engine at WOT. Otherwise, it's just another operating cost you can manage by deciding when performance is sufficiently degraded to warrant spending money on a new one. It won't impact fuel economy or driveability under 99% of normal use.
Totally agree on oiled filters. Had a bad experience on an Evo.

So how often are you changing it? 15k ? I can’t remember nor find the factory’s recommendation and what is your recommendation? Danial said in the Blackstone thread he recommended more frequent changes and said using a cheap filter more often would be better for the engine than going longer on the stock one.

Last edited by Greatest; 01-20-18 at 12:08 AM.
Old 01-20-18, 12:18 AM
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Oiled filters tend to gum up the throttle body over time as well. I cleaned my AFE dry filter after about 13k and it was surprisingly clean. Looked like new.


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