I have one each mk3 Golf/Jetta AAZ 1.9td downpipes, the early square flange for k14 turbo with new flex coupler welded in has a pivoting flange at the bottom (no cat converter two piece replacement) and the later k03 kidney flange used one piece with cat converter. Both are in good shape and have years of service left in them.
$100 each firm, plus shipping.
Greg