Ports: can they extend outside the cab?

[Emprov]

Building a bass cab using a Deltalite 12 and have a quick question about ports. Does the entire volume of the port need to be inside the cab or can it extend outside? Does the speaker care where the port is?

 

[Stocker]

Do the ports however you want/need.

Bag End had an ELF system for the car that had an external port that you mounted to the rear shelf.

but outside port = ugly.

 

[Emprov]

I'm thinking about recessing the baffle about an inch and extending the exterior of the port (16x3x3.25 slot) to make it flush with the rest of the cab. No probs?