I am curious what restrictions you are talking about? I know that the bends are not 100% accurate as I have yet to get in there and measure out actual bends. But I would think it could be less restrictive because I can run a thinner walled metal than the thick cast plenum and therefore fit a larger diameter pipe in the same area. I also see the intercooler setup as a benefit because I am no longer looking at needing the tiny balance tube to help with even flow to both cylinder banks. Please elaborate as this is in the "thinking it out" phase so as much input as possible would be great.