[2008_CrewMax]

Common weaknesses in AEM's Cold Air Intake system relate to weaknesses in the filter flange. Other common complaints relate to the quality of the filter itself (it's not always a K&N). While all CAI filters get dirty far more easily then the stock set-up, the filter provided in the AEM kit was reported to be particularly weak and fragile. Common complaints relate to the filter flange itself. This can be particularly troublesome considering that replacement filters for these units can cost as much as $100. I've also heard complaints about the quality of the aluminum itself. Some people reported that compared to other cold air intakes, AEM's are made of a much thinner aluminum. For those who constantly work on their car, this can be a headache as the intake requires constant removal.