A certain task needs a certain skill and sometimes, even a certain talent. But let's start from the beginning. At some point in time it became quite clear to Ragnar that the Lotus Exige top-of-the-roof type of intercooler air scoop was perhaps not state of the art in terms of efficiency.
Hence a painful design & manufacturing process started. But let's cut the story short. The modification involved a lot of aluminum welding (Anders is for sure getting better and better...) but as well a sealing procedure which required a lot of experience as ginger bread house builder as a child or to simply just be gifted.
Ragnar in making of Intercooler inlet, Ginger bread house style. Natural born talat or experienced? Nobody will know.