This is the Pumaspeed TCV/BCS -
It's even MAC branded on the label, I couldnt get any 90 deg elbows yesterday but dont think I'll need them anyway. I managed to get some decent black hose and knock together a quick bracket to mount it off the existing boss on the side of the airbox.
If it weren't for waiting for paint to dry, I'd have fitted it yesterday but I might do it one day in the week instead.