Its an open element plastic tube... The airraid mit on my yukon retains the factory box and ive heard that jegs or summit sells the k&n tube but i personally havent been able to find it on either of their sites....

 

There are a couple of options for efan harnesses.... I went with a factory harness and relay block from justchevytrucks.com

 

I don't have any pictures but I did the 05 up radiator with E-fan swap and used a PCM of NC fan harness to control it on a 99 GMC.

There harness is nicer than most of the competitors on the market.

 

I used the Airaid 200-912 when I swapped my TBSS intake on. It clears the shroud by a hair.
But like others have suggested, swap to e-fans and you wont need to clear it anymore.

 

Just buy the spectra intake from any autopart store. Will work just fine and cheap by the way

 

^^ what he said its about $150 vs the $350 for the other brands....