That bending software from Spectrum5 sounds fine, but it's only for physical modeling of the header. Thermal and pressure calculations must be still done separately...
Here is one sample of my work with SolidWorks 2004.
This header is for my mate's Volvo 240 Turbo with KKK 026 Turbocharger...
I've been lately constructing turbo exhaust manifolds with SolidWorks 2004. I first modeled mandrel bends and then made a assembly with bends and straight pipes to construct a header. It is very easy and fast way to model a manifold, the only pain is to make the pipe length equal. I know it is...
