There was a fella who posted in the MK2 section on ed38 about 3-4 months ago who had one of those made up - he said the company name too.
I'm too lazy to look for it as ed38's forum is just like groundhog week, its the same posts all the time. Post the photo on there and he might post back?
Not a big fan of any upswept exhaust, twin squares ftw.