Was gonna say good luck. Been fighting them for 2 years now on one of mine that is afu. It's not the first one I've owned ( think its #4 through the years and different rides) Its one of the round style thats falling apart at the pleats. Sent photos, serial number, and a photo of the reciept via email to customer support and the battle began, after 2 months of back and forth emails, I'm sick of the whole ordeal and have honestly given up on them. AEM is a hell of a lot better... Screw K&N.... Waste of money...
12 F150 Lariat 5.0 4x4 Crew
03 Edge 4.0 -Next door
Y2K TJ Sahara... Lifted, locked, loaded
08 Scion tC