Hooker,doug's,TTI?
I have a feeling we won't get these...
The facts are that more and more companies are discontinuing slower moving, unprofitable parts. As the consumer group gets older and fewer cars are being rebuilt, their inventory is diminishing down to zero. Sanderson said they are discontinued, meaning they will not be making anymore. Summit lists hundreds of thousands of parts and they have not caught up to this yet.
If you really want DD9 headers:
Keep looking, maybe there's a set in a warehouse somewhere.
Put a wanted ad on FABO and maybe Ebay. Somebody probably has some they're not using.
Contact Sanderson and see if they might make one last group buy if they had enough preorders.
Tough times coming.