This is a custom designed exhaust manifold header. It is designed based on my exhaust header manifold flange that is also available in my models for sale.The paths for the exhaust tubes is selected in this way that the most uniform path is achieved so that the exhaust pressure drop is minimized.It can be used in combination with turbochargers in order to make a complete mounting kit for an miniature car or decor. Along with the native Solidworks file, you can also find parasolid, iges and step formats as well as stl, amf and 3mf. Polygon file is also attached. Can be used for 3D printing.