replace snorkel with cone filter

[Gelbster]

i.fro has a great concept because he is moving the filter to a cooler location and using empty space.
I did a similar,less intrusive project and would mention another benefit of removing the airbox.
If you have to work on Bank2 with the engine in the car ,even the regular airbox is extremely obstructive. The larger 987 is worse. With no airbox you can access the injectors and even remove the cam cover to replace lifters.
Before you decide on doing this ,just read up on how to remove the airbox. As an indication of the difficulty, often it has to be broken into pieces to extract it.