How i can use the NSX shaders "at home"? they are packed in a .mas file in the package. When i look at the wccarbody material in 3DSimed it is just a T1 shader.
Not sure of the question, but Unpack them (with mas tool) in the share folder of your moddev to test them. And add the shader.mas in the share folder of the core installation part to get it in 3DS Max gmotor materials In 3DSimEd, perhaps to put the mas in hadwareshader folder I think.
Which shaders do you want to use? The light glare shaders? Other shaders are just standard rFactor2 shaders...
Actually, the CustomCmapSpecMap is used for car paint. If you wish, you can use it, although the standard shaders are almost as good (if you want to use bumpmapping also). If you are only interested in the light flare shaders, then those are released separately: http://www.siimannuk.com/light-flare-shader-for-rfactor2-released/