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Supratruck Pilot
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Now that I'm single (the engine, not me) and running the AEM, I no longer need the hose to the IAC which brings up a question. Is a filter necessary on the IAC? I noticed when I had it apart that there is a foam filter inside the IAC so is another filter on the tube needed? I noticed that some have small K&N filters on theirs but is this really necessary or just for looks?
 

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The filter should be used when your IAC is being used. Since your AEM is it setup to run the IAC? I'm not very familiar with the AEM but I thought you could set it up to control it. If so you want to filter the air going into the Plenum so on cars like mine it is used for a purpose.

Hope that answered your question.
 
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