Yes, terrible non existent customer service. Specially their customer service representative Suzanne Olivas, she represents AEM and K&N in a very VERY BAD light and tarnishes their reputation.
AEM knows the problem, they actually corrected this, have a look at their website manual for the kit. The diagram in their manual now has the corrected heat shield cut out and diameter. They changed it. Its very unfortunate that they did not recall older kits still on the selves (which i obviously unfortunately bought just a few months ago), nor automatically sends corrected heat shield for cases like us.