If anyone is interested, a guy in Germany is making proper Y-pipes again.
These look identical to the one I have from the now defunct BSM company.
Maybe he bought the jigs/formers.
He also does an H pipe for twin silencers.
Ebay article number 151789921933
These look identical to the one I have from the now defunct BSM company.
Maybe he bought the jigs/formers.
He also does an H pipe for twin silencers.
Ebay article number 151789921933