/6 Hooker Headers...surprise

So, I am making the swap to a 2bbl manifold on my '70 Duster with a /6. I had just rescued this car in June, and have gotten it drivable. When I bought the car the exhaust manifold was badly broken, but it came with a good used one so I put it on. The spring for the heat riser broke and was boiling gas out of the carburetor. I wired the flap open to get the exhaust heat away from the intake. It ran great, no worries. Now, my plan was to upgrade in stages and I purchased 2bbl carb and intake right after buying the car. I will do 4bbl, head and cam upgrades later. I decided a couple of weeks ago to go ahead with the 2bbl swap. When I pulled the manifolds I noticed this exhaust manifold was also cracked, not bad, but still cracked. Now is the time to upgrade the exhaust too.

The plan has always been to put headers with the other mentioned above parts on the engine. I looked at all the available options and decided to go with a set of Hooker headers. I ordered them from Speedway motors and with discounts and free shipping got them for a decent price, still a good chunk of change though. They were drop shipped from Hooker and arrived within a week, I got them yesterday. Now the surprise, I got them out of the box, and one of the tubes on the front set had a tube welded on. I thought to myself cool, I can make a heat riser from this. As I pulled the rest of the stuff from the box I found all the stuff needed to have a heat riser. No where in my readings have I ran across anyone talking about this, maybe I missed it, I don't know. I definitely haven't seen any pictures of it. I will hook it up and try it, I just hope it works like it's supposed to.