Here's a shot of the exhaust manifold. We tried to find a way to avoid going through the subframe, but it's either that or move all the heat exchangers up front and tube the front end. We'll be boxing the subframe and making a brace to go underneath it, so it'll be plenty stiff.
It's all equal-length (to within 1/16") with stepped primaries. Should perform very well. We're looking at going with a custom exhaust, though, to make room for the oil lines we'll be running back to the tank.