nah see, I don't think so. I've not seen much in the use of "high flow" manifolds for the LCR lump. Everyone say's it, but has there been much development on Manifolds that could held the flow? Badger 5 have done the TIP work which seems to work, so with the same applied to the other side of the engine, there must be some gains.
Have you seen that 20v T mini that was over 300bhp. Standard K04 but had a custom manifold and downpipe with exhaust (because of the space at the back of the engine) and managed it. The manifold is the restrictive point once you fit a 3" downpipe and exhaust. I think if you could get a better manifold the turbo would flow better.