AnimalexThey will install in a base non Z51 as well. I believe it will function with Trans cooler if it's an auto but only cosmetic on the diff. Cooler side. If it's an M7 base care these would only be cosmetic.
beeguzNot necessarily true. Here is the definitive answer on the functionality of these intakes:
Z51 - both vents are functional
1 is for the transmission cooler
1 is for the differential cooler
Non-Z51 Automatic Transmission
Automatics have a functional vent for the transmission
Other is blocked off/non-functional
Non-z51 Manual Transmission
Both vents blocked off