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Questions about Second Air Filter in Intake Housing

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Old 02-28-2012, 01:50 AM
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Default Questions about Second Air Filter in Intake Housing

Can it be removed without any problems? I bought a K&N drop in filter and noticed it inside the housing. Its right before the air flow meter.

Last edited by MR_LUV; 03-11-2018 at 06:18 AM. Reason: typo
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Old 02-28-2012, 06:04 PM
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It's a Carbon filter, and it is part of the emissions system. The dealer could possibly deny you any warranty claims. I really do not think removing it will do one bit of good. Will it actually hurt anything removing it? I highly doubt it, no aftermarket intakes have them.
The only real benefit I see to it is catching excess oil from the K&N filter. That would require the filter to be over oiled in the first place. My filter has not bled any red oil residue onto the carbon filter. I have checked several times.

Last edited by MR_LUV; 03-11-2018 at 06:16 AM. Reason: typo
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Old 02-28-2012, 06:46 PM
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Originally Posted by Blackedout011TC
It's a carbon filter, and it is part of the emissions system. The dealer could possibly deny you any warranty claims. I really do not think removing it will do one bit of good. Will it actually hurt anything removing it? I highly doubt it, no aftermarket intakes have them.
The only real benefit I see to it is catching excess oil from the K&N filter. That would require the filter to be over oiled in the first place. My filter has not bled any red oil residue onto the carbon filter. I have checked several times.
Yeah, I was thinking the same with the Dealership. I know GMs have one that looks like a door screen, and they usually remove it with no real power gains.

Last edited by MR_LUV; 03-11-2018 at 06:12 AM. Reason: typo
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Old 03-14-2012, 03:16 AM
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Originally Posted by tommyboy
Can it be removed without any problems? I bought a k and n drop in filter and noticed it inside the housing. Its right before the air flow meter.
In short,
If you don't know what it is, leave it alone.
Buy an intake if you wanna go fast.
The end :-)
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Old 03-14-2012, 03:44 AM
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Originally Posted by TheYota
In short,
If you don't know what it is, leave it alone.
Buy an intake if you wanna go fast.
The end :-)
Ha. Whatever dood.
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Old 03-14-2012, 03:55 AM
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:beer::thumbup:
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Old 03-14-2012, 04:05 AM
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Originally Posted by TheYota
In short,
If you don't know what it is, leave it alone.
Buy an intake if you wanna go fast.
The end :-)
Smart man
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Old 03-25-2012, 01:51 AM
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That CARB filter is what allows this car to be 50 state emissions legal (including CA). You will be fine in the rest of the 49 states without it.

Installing an aftermarket intake removes this CARB filter regardless (to increase airflow), which is why most aftermarket intakes will not pass emissions in CA. An exception is the TRD, which uses a factory style airbox and still includes the extra CARB filter.
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Old 03-25-2012, 02:30 AM
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Originally Posted by TheYota
In short,
If you don't know what it is, leave it alone.
Buy an intake if you wanna go fast.
The end :-)
Cause an intake makes you go fast
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Old 03-25-2012, 03:02 AM
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Originally Posted by biglilsteve
That CARB filter is what allows this car to be 50 state emissions legal (including CA). You will be fine in the rest of the 49 states without it.

Installing an aftermarket intake removes this CARB filter regardless (to increase airflow), which is why most aftermarket intakes will not pass emissions in CA. An exception is the TRD, which uses a factory style airbox and still includes the extra CARB filter.
I can easily remove the CARB filter with out damage and just goop it back in 6 years from now, if I still have it.
Pretty sure it will be a reg CA smog too and those guys don't usually dig into the stock filter housing. Its just, is it worth it? Noticeable power I mean.

Last edited by MR_LUV; 03-11-2018 at 06:15 AM. Reason: typo
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Old 03-25-2012, 03:05 AM
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Originally Posted by engifineer
Cause an intake makes you go fast

it does just like stickers add 10 hp
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Old 03-25-2012, 03:05 AM
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Doubt you will see anything noticeable from removing it. I say leave it. But technically you will flow better.
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