No idea on the actual number, it's the AFE prodry that's the same dimensions as the BHAF.
That is good thinking, it would be nice to get that filter back some so it won't be a huge ordeal to get to my lights/other filter that's going to be buried under there. I need to go peruse the AFE website, it would be easier than trying to build around what I've got.
Then again, building around what I've got is what I always do. :lolly:
The lower filter is a smaller one, but I wanted to run the bigger one there since I assume the truck will use it 99% of the time. That lower filter was also what I ran when I just had the 24v breather puking blowby all over the front of my engine. That poor filter sucked up as much of it as it could.