I went for the 2 piece kit (
http://www.thesamba.com/vw/classifieds/detail.php?id=158498 to be
specific).  I think the main difference between one piece vs split pipes
would be in dropping the gas tank (regardless of which engine you are
running.  I would imagine that it would be the same difficulty to connect a
single piece to the engine side as the split piece.  Your big hold up is do
you want to drop the gas tank or not?

The stainless steel should fit either way assuming your bostig hooks up to
the stock coolant pipe location.  The stainless steel pipes are basically
copies of the stock plastic pipes (same bends and sizes).  Plus the split
ones should save you some shipping (split pipes fit in a smaller box)

Andrew

On Mon, Jun 24, 2013 at 2:43 PM, Marco <nwmarco@yahoo.com> wrote:

> Hi,
>
> I have a 1986 Westy Weekender that I am putting a Bostig conversion into -
> still waiting on some of the parts...
>
> While I have everything out, I pulled the plastic cooling pipes and
> replaced them (and the heater lines, and the radiator).
>
> I bought a set of the stainless steel pipes from the Bus Depot. I haven't
> hooked them up at the engine compartment end yet, but they appear to fit OK
> over the fuel tank and at the radiator.
>
> The break in the lines is aft of the fuel tank so you don't have to drop
> it to install the pipes.
>
> Cutting the plastic pipes in the middle makes them easy to remove.
>
>
> Just be careful to label which pipe is which and match the plastic ones
> w/the metal ones you are replacing so the bends will line up.
>
> Cheers,
> Marco in Seattle
>