I am also running the factory heat shields on the manifolds, and in one spot the heat shield was in the way of the turbo. I smashed it in a little with a hammer and it fits fine. I can't remember what side it was on, but it was a really simple and easy fix. I'm guessing that since the map manifolds are bigger it just pushes the heat shield out further and into the way of the turbo.
"Face it, you just can't beat stupid." "Never underestimate the power of stupid people in large groups" "My favorite glue is Hopes and Dreams. " "My Z runs on gas and money."