I have a real HKS Super Sequential BOV (not a cheap e-Bay knockoff) for sale. Its in good condition and comes with the TMIC adapter and the aluminum plug for the intake tube. When I bought the car, it came with it and I don't have any use for it because the car will staying stock for awhile. I'm not sure what these go for used, but I know they are around $300 new.
Its in good shape and like I said comes with everything you need to swap out your stock bypass valve with...so how about $175 and I'll cover shipping and any PayPal fees.
I don't have any selling rating on here, but I do have a good history over at ls2gto.com where I have sold several parts. If someone wants to see a Feedback thread, I can provide a link if needed.
I apologize for the crappy pictures...I came home for the weekend and forgot my camera at my apartment.