Hi the spoiler was an ebay purchase:
PORSCHE 1997-2004 BOXSTER 986 RETRACTABLE LIFT REAR WING 251221577285
Member ID racing_raven
The quality of the product, which was shipped from Hong Kong was not that great, the shape was good, just that the fixing holes needed drilling through the fibreglass, which was a little too thin for my liking.
I drilled the holes, then re-enforced them with S/S washers so that you could tighten the spoiler down without splitting the fibreglass.
The look when painted is very good, i can't say how much if any down force you will get from it.
The Box still corners like on rails with it fitted though.