[Jason in TX]

We tried cooking bratwurst and onions on our manifold once in a home made tinfoil wrap that was tied to the manifold with bailing wire. When we got to our destination about an hour and a half away, we found that it was actually not cooked long enough. We were surprised! I wonder if these boxes (I've seen and actually held one in my hand) do a better job of capturing the heat and cooking.

So, you've seen good results, eh?