Very recently purchased the exact same thing from SSSD and it's a very good price for the splitter which as far as I can tell is identical to the OEM aero splitter. Worked out to about £180 something quid I think with delivery.
Only problem is they don't keep many in stock and order them in from Germany so if they haven't got any in at the moment, you will have to wait 2-3 weeks like I did.
Just waiting for the 3M tape to arrive from ebay now and then I will be booking it in to have it sprayed and fitted. I'll post pics ups when I am done.