It's being featured in a stang TV article sometime, they tested on a 2015 Coyote owned by UPR. Results were supposed to come out the beginning of March, so anytime now really. Here is a thread about it. I will be extremely surprised if this performs better than the CJ, Boss, Stock, or GT350. This looks like it's for full retard cars that will run over 20 psi of boost(close to 1100hp, on a turbo car) and don't want to worry about a manifold expanding(I don't know what the true limit of any of the plastic manifolds are, ford tested the CJ to 20+ psi). It doesn't look like it was shaped for flow, it looks like it was shaped so it wouldn't be too hard to weld together, again, not exactly an expert here.
I talked to Steve at UPR this weekend. However, he basically signed his life away not to mention much. But he left me with the impression the intake will be worth it. However, like any case of the years, forced induction will benefit the most.