Boxster S center body coolant pipe differences?

[Don N]

During my research, I came across a few threads that discussed the differences between the regular Boxster and S model's coolant pipe sizes. I understand/read that the front hoses that attach to the radiators are of different diameters.

However, I wasn't able to verify/confirm if the center hard lines that run the length of the body were also of a larger/different size on the S models as well?

As an aside question, does anyone know the diameter differences between the S and non-S models as well?

thanks!

-Don