Manufacturers are going for very short manifolds on turbo setups from what ive seen. This is because as exhaust gas cools its velocity decreases so the heat energy aids spool. AMG, bmw and porsche on the latest panamera have gone hot v configurations with the turbos closer to the heads in the V of the block.
Ive no idea if a really short manifold would make our turbos spool sooner on our cossies but would be interesting to find out.

As for the OP someone has to be the first to try something new. Could be alright ive no idea. Give it a go and report back