2.5 vs 4.0 airbox

[Pete M]

I know the air tube to the TB is very different, but what about the lower and upper airbox?  I have been quite lax in labeling the things I bring home. 

[eaglescout526]

The lids are different, lowers are the same. 4.0L lids have two air ports on the back of the lid. Kinda like how the air bonnet on the 2.5L has the same ports. Otherwise they are the same for the most part. 

[Pete M]

oh, excellent.  I have one with the 2 little ports and one without.   

[eaglescout526]

Lol. There ya go. 

[scaleless]

On a related note, what's different between the Renix and HO boxes other than the removal of the hot air bypass?

 

[eaglescout526]

The placement of the crankcase vent tube. instead of going to the back of the lid with a "J" pipe it instead goes directly to the side. Only on HOs. Which is annoying if you need a lid and you have Renix, especially with the 2.5L.