I had asked about it in the samba...here is what I had from back then:
http://www.thesamba.com/vw/forum/viewtopic.php?p=6318716#6318716

GL,
Tony

On Mon, Oct 22, 2012 at 12:46 PM, neil n <musomuso@gmail.com> wrote:

> This won't point you to a list, and is not a bolt-up affair, but with
> aviation snips, drill, file, I made L brackets out of stainless steel.
> Bolted each to firewall with 2 nyloc type fasteners. Part of each bracket
> hangs below the firewall. I bolted one of these to that part of each
> bracket:
>
> http://www.elecdirect.com/images/pageheaders/RubberInsulatedCableClamps.jpg
>
> to secure each hose to bracket. I ran a new one piece hose from filter.
>
> This put each hose ~ 3/4" below firewall.
>
> Neil.
>
> On Mon, Oct 22, 2012 at 8:45 AM, Rocket J Squirrel <
> camping.elliott@gmail.com> wrote:
>
>
> I read that it can be replaced by simply passing the hose through the
> > firewall, no fitting required. But I have Googled and searched the
> > Webbernet and pored through a whole bunch of older posting in the
> > archives and didn't find a simple "here's the parts you'll need" +
> how-to.
> >
> > Can someone point me in the right direction?
> >
> >
>
>
> --
> Neil n
>
> 65 kb image Myford Ready For Assembly  http://tinyurl.com/64sx4rp
>
> '88 Slate Blue Westy to be named.
>
> '81 VanaJetta 2.0 "Jaco"  http://tubaneil.googlepages.com/
>
> Vanagon VAG Gas I4/VR Swap Google Group:
>
>
> http://groups.google.com/group/vanagons-with-vw-inline-4-cylinder-gas-engines
>