The Safari Snorkel is on. I am glad to report that with only a new 5" hose clamp and some stretching of the supplied rubber adapter, the regular Australian spec Safari Snorkel will work on the US spec 5.7L. Christo Slee had reported the same-but we all were just not sure how this was going to work.
There is a great YouTube Video clip for the Diesel showing the install of this at
I won't replay the install as it is covered in the instructions and video. What I will go over is a few things that are different.
Obviously convert the drill hole sizes from mm to fraction inches if you don't have metric drill bits. Example the 114mm hole saw was close to 4-1/2 inches and I found one at Ace Hardware. The other mounting holes were 5/8 inch. It seems that all the hole are a bit over sized to allow for play in mounting should the template be just a bit off. I just trusted the template and went for it.
Now, for the known issue- The non-us spec 4.6 petrol and diesel have a perfectly round outlet on the air intake box and the US spec has a odd shape as shown in pics. The good news is that you can ditch the supplied hose clamp and find a new 5" one (I got mine from State Trailer Supply) and you can flex and strong arm the rubber to get it to go over the odd shape as shown in pictures. The alignment is the hardest part. It was warm here today 90F so if you do this in the winter you may need to use a heat gun to warm up the material. The instructions tell you how to align for the non-US spec but you are on your own to get it to line up. I had to move it around until I got the outlet end so it would line up with the snorkel pipe. It will begin to make sense once you get to this point.
Anyway here are a few pics- black on black is harder to see for sure.