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Foam on Stock Air Filter

11386 Views 10 Replies 4 Participants Last post by  iTz SADISTIK
Didn't know where else to post this but, has anyone taken the foam off? What are the benefits? Are there any bad things about it? If it matters i have a '12 LS with the 1.8 auto of course. And I already did the Intake Resonator mod.
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My Wix filter has one too. I believe it's just another layer of restriction to improve economy. I don't think it's really there to do any filtering since that's the filter's job. I took mine off, might get a little better airflow, haven't blown up yet.
My Wix filter has one too. I believe it's just another layer of restriction to improve economy. I don't think it's really there to do any filtering since that's the filter's job. I took mine off, might get a little better airflow, haven't blown up yet.
Would removing it yield better fuel economy? I do a lot of city driving so every MPG counts..
Would removing it yield better fuel economy? I do a lot of city driving so every MPG counts..
I think leaving it on would give better economy. Less air, less fuel.

I'd be willing to bet someones else's money on it.
So it's more of a performance mod then? I'd love a little more get up since I don't have a turbo in my Cruze lol.
So it's more of a performance mod then? I'd love a little more get up since I don't have a turbo in my Cruze lol.
Yeah but probably not hardly noticeable. I'm no gearhead, and I can't honestly vouch for anything I've said lol. All I know is I took mine off and under the foam it looks like any other filter you'd put in any other car, so I figure it can't hurt.
Couple things to know:

- The foam is there for locations with a lot of dust, like Arizona

- You can remove it without any issues. (Would be no different if you installed a K&N which doesn't have the foam)

- If you don't replace the foam before it dry rots there is a chance it can mess with your MAF but this isn't usually a problem if you replace on schedule.

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Couple things to know:

- The foam is there for locations with a lot of dust, like Arizona

- You can remove it without any issues. (Would be no different if you installed a K&N which doesn't have the foam)

- If you don't replace the foam before it dry rots there is a chance it can mess with your MAF but this isn't usually a problem if you replace on schedule.

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Yeah you pretty much covered everything! I guess I'll leave it on because I live on the dustier side of Maui so my car sees a lot of dirt. Much to a point where if I let it go for more than a couple weeks between washes my car will get filthy. But I've been keeping an eye on the filter and it's still pretty clean after about 15,000 miles. I've heard that K&N's free flow filter lets more dirt in so I wouldn't really trust having that in my car..
Yeah you pretty much covered everything! I guess I'll leave it on because I live on the dustier side of Maui so my car sees a lot of dirt. Much to a point where if I let it go for more than a couple weeks between washes my car will get filthy. But I've been keeping an eye on the filter and it's still pretty clean after about 15,000 miles. I've heard that K&N's free flow filter lets more dirt in so I wouldn't really trust having that in my car..
Everyone has an opinion on K&N. I think it really comes down to each persons preference. Of course it will screw with your MAF if you over oil but I never had a problem with mine when I had my Silverado. There are plenty of good/bad stories for both sides.
Removing the foam filter (foam delete) gives you a louder intake when you go resonator bypass/delete. I'm not gonna touch the K&N, I'll wait for the others to post links to how they filter dust.
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Removing the foam filter (foam delete) gives you a louder intake when you go resonator bypass/delete. I'm not gonna touch the K&N, I'll wait for the others to post links to how they filter dust.
Lol :p



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