I made that one and have been using it for the at least the past 2 years without incident. It seems to work much better than any heater core intercooler I've used before. I made a build thread on clubgp when I did the project.
Mike
Looks like a huge flow restricion to me . I guess I'd have to see a view through the top.
Not bashing, just very different from what I've seen before.
Edit: just looked at your post on club GP. Nice work OP, I'm still saying it looks too restrictive to flow though.