I don't have a lot of time this weekend, but managed to find an hour or so today, so finished one side of the headers by putting on the 2.5" downpipe, flange and O2 bung.
The keen-eyed will see I stuffed up and put the O2 bung on the wrong side so I added another one, will blank off the wrong one.
The effect seat-time has on your TIG ability is amazing