HTF do I put an ART can back on my SV?

Hello peeps and knowledgeable bodies[1]

My recently acquired SV650s came with an ART can. An OEM can had been
refitted by the dealer, and I want to put the ART can back on, and I
need a bit or bits[2].

The original exhaust system was chopped 5 or 6 inches upstream of the
original can. The replacement OEM can has the 5 or 6 inches of length
(it may even be the original can), which is attached by a connecting
tube that fits inbetween the perforated inner wall and the outerwall
of the exhaust of both the upstream & downstream bits of the exhaust.
The whole thing is secured/sealed by a big wide jubilee clip around
the join. Let's try some awful ASCII section drawing...

____H____
-----
'''' ''''

where <underscore> "_" is the outerwall, "H" is the jubilee clip,
<minus> "-" is the connecting tube, <apostrophe> "'" is the perforated
inner wall. (Note this is just top half of a section drawing.)

Now the ART can that I have has a protruding "flange" that protudes
about 1.5 inches out of the upstream end of the can and directly out
in a straight line. Hence "bit" missing between exhaust and can.

a) What's the missing "bit" called?
b) Is this 5 or 6 inch chop a standard way of fitting a [ART] race can
for SVs?
c) Is this "bit" a standard part?
d) If so, where would I get one from? ART? LBS?
e) If not, WTF do I do? WTF would I get the correct "bit" fabricated?

Apologies if all this is available on the wu-wu-wu. Goggle didn't help
much, and WTF does ARTs site not have a "skip intro" ARRRGGHHH! (And
no useful info.)


[1] Well, knowledgeable bodies really, but hello to other peeps
nonetheless.
[2] Sorry dudes, that's as close a technical term I can think of.

TIA

Spangle.
SV650s
NC30

 

Completely flummoxed by the rest of your post, but yes cutting them here is
standard on SV's for most 3rd party exhausts.