I won't be using the whole piece so it's slightly wider at the base at present.
The plan is to lay up a few layers of glass and Carbon to get the part stiff enough
and after trimming I'll vacuum bag it with 6 layers of the good stuff.
Quite a complex piece with an equally complex build procedure but I have a good
idea on how it will turn out.
Went onto a composites forum and there were a bunch of guys in Europe building
really nice plenums for BMWs. Great looking on the surface but when I asked what the insides
looked like as far as finish went I never got one answer. It seems that as long as the surface
impresses it doesn't matter if the inside looks like Subaru.
My box will probably be rough on the outside but the air doesn't flow there.