Originally Posted by sflgator
Technically, you don't have to install the heat shield (the dual cone air filters do not sit on the heat shield and are not stabilized by it), but why wouldn't you?
Actually, in the AFE kit, the dual cone filters are stabilized by the heat shield with a bolt that attaches the heat shield to the center of the filter tube assembly. That is the purpose of the cross tube between the two filter tubes.
Without the heat shield, you are relying on the hose clamps at the factory intake tubes to stabilize the filters and filter tube assembly.