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What is that crazy foam thingy inside the airbox?

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YOUR RESEARCHWhat is that crazy foam thingy inside the airbox?

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Replace theirs

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I remember someone replaced theirs with one of those green scotch brite pads.
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What is that crazy foam thingy inside the airbox?

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Leading evidence: 'Replace theirs' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace theirs' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.

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Replace theirs

No successful repair reported for this finding.

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Reported fixes: 0
Unsuccessful attempts: 1
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Discussions that performed work without a confirmed outcome: 1

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I remember someone replaced theirs with one of those green scotch brite pads.
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What is that crazy foam thingy inside the airbox?

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POST 1 / ORIGINAL POSTEROriginal post

Took apart and cleaned out my airbox & TB today. Tookout that crazy foam thingy and it's bracket in order to clean it but the foam was crumbling some so I left it out. What is it for? Noise? water absorbtion?

POST 2Original post

I asked the same question before, and I think someone said it was for noise dampening. Mine was turning bad as well.

POST 3Original post

I cleaned out my airbox as well. Needed to vacuum out the deteriorated foam. Can't seem to find replacement, unless I buy entire box. Also, not thinking it is needed....Thoughts???

POST 4Original post

I dont think it's needed, older air boxes don't have it. From memory it's an 03+ thing

POST 5Original post

same here, it was crumbling intact but when you touched it just fell apart the consensus is that it's primarily for moisture I'm going to try and replicate mine from thin foam as I threw a P300 code after a hand wash

POST 6Original post

It's supposed to stop the chance of water being inducted into the cylinders causing a hydro locking situation but I know what you mean about it crumbling , I had this also and can't find s replacement part, if anyone had a part number for this and someone who sells it please post on here!!

POST 7Original post

I remember someone replaced theirs with one of those green scotch brite pads. Seems like it would work?

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