Yeah I know that in theory it reduces lag and I am sure it does, but has anybody actually done a back to back comparison to actually state they notice the difference in lag and how much/little it is between the two routing methods? Is it like noticing a 2kW gain in power or a 20kw gain in power?
Has it been considered that if you run over the manifold you're heating the air more than if you were running over the intercooler, and if this hotter air off-sets any lag advantage the shorter route gives?
It'd be a decent experiment to find out at least!!