IS - 3rd Gen (2014-present) Discussion about the 2014+ model IS models

Air filter upgrade

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Old 02-07-19, 01:12 PM
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Pcavzz
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Default Air filter upgrade


Thoughts on these air filters?! I bought one recently just got it, hesitant to put it in? Is it worth it over the stock one? Kind regards

guys need some help here, should I just leave my stop air filter pad in? Or change the stock one over to this bad boy? Kind regards. Paul
Old 02-07-19, 01:40 PM
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E46CT
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I would go Lexus F Sport. and remove the charcoal filter.
Old 02-07-19, 09:47 PM
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Originally Posted by E46CT
I would go Lexus F Sport. and remove the charcoal filter.
Same, get the Lexus F Sport filter.
Old 02-08-19, 06:56 AM
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Chris27IS
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Where can one find the Lexus filter? Ebay? TIA.
Old 02-08-19, 07:15 AM
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+1 on the F sport filter
Old 02-08-19, 08:02 AM
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E46CT
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ebay is best. i got mine for really cheap. then sold it for cheap.
Old 02-08-19, 09:51 AM
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Chris27IS
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Sounds good, thank you man.
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Old 02-19-19, 06:28 PM
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Pcavzz
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Originally Posted by E46CT
I would go Lexus F Sport. and remove the charcoal filter.
link me? Do i buy it off eBay or something? At what chacoal filter are you talking about?
Old 02-19-19, 06:57 PM
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Flash5
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Originally Posted by Pcavzz


link me? Do i buy it off eBay or something? At what chacoal filter are you talking about?
When you open your intake box, the top piece that you open up look in it and you’ll see a charcoal filter. It’s built into the intake box, you have to cut it out. It’s there for emissions, but it’s an additional restriction. Someone just posted a thread on the difference of having it in vs off (Engineering Explained YouTube video). Most of us here on the forums have removed it, it seems.
Here is the thread and also E46CT posted a picture of the filter on this thread.
https://www.clublexus.com/forums/is-...er-tested.html
Old 02-19-19, 09:20 PM
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Pcavzz
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Originally Posted by Flash5

When you open your intake box, the top piece that you open up look in it and you’ll see a charcoal filter. It’s built into the intake box, you have to cut it out. It’s there for emissions, but it’s an additional restriction. Someone just posted a thread on the difference of having it in vs off (Engineering Explained YouTube video). Most of us here on the forums have removed it, it seems.
Here is the thread and also E46CT posted a picture of the filter on this thread.
https://www.clublexus.com/forums/is-...er-tested.html
thank you appreciate the help !!
Old 02-19-19, 11:33 PM
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BLITZ is a good quality brand. I would go ahead with that filter if you already have it. If you got it on eBay, make sure it's not a fake product.
Old 02-20-19, 06:35 AM
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Blitz is a great brand if its the same price however there wont be much difference from the K&N or F sport filter for this particular application. So it boils down to preference and availability.
Old 02-20-19, 06:41 AM
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Originally Posted by Pcavzz


link me? Do i buy it off eBay or something? At what chacoal filter are you talking about?
In the top cover of the intake box there is a charcoal filter, looks like a dark grey "foam", you will need to break some tabs to remove it.

random google pic for reference.
Old 02-20-19, 07:39 AM
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Interesting the gains the EE guy showed with the better filters (from his other video), but also odd that removing the charcoal didn't do much in conjunction with the K&N. I've always heard and figured you gain maybe 2-3hp at best, but if gains really are in the order of 3-4%, that's pretty significant once you get up into our power levels.
Old 02-20-19, 07:48 AM
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Is the Blitz cleanable though? If not then over time it'll end up being more than both F-Sport and K&N.


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