Huge must, Aluminum Intake guys!
I noticed everyone on YouTube isn't using the gasket between the intake manifold and the adapter plate for the throttle body with the red aluminum intake manifold. You need to use a gasket included with this kit as the aluminum intake doesn't have an o-ring gasket like the plastic intake manifold does! I've included a picture on how to spot if the gasket is installed. Don't be there person with a boost leak.