I've got a set.
One is original 2.0 exchanger.
The other began life as a 1.7 exchanger but I had the end from a 2.0 exchanger cut and welded on. That particular 2.0 had a cracked pipe
I ran them on my car for a few years with no issues. I recently came across another set of 2.0 exchangers so no longer need these.
$550 plus shipping. I'll post some pictures shortly.