I have heard anecdotally that there's benefits (besides heated filter or lower IAT) to an intake tube - air velocity/turbulance stuff, over my head.
My setup has a 3" dia, ~12" long elbowed pipe between filter & turbo. Sits facing up near battery. Post-intercooler still has
> MAFT still in (for switching, as I'm just messing around learning setups...),
> IAT on TB elbow,
> MAP on a 1/4" intake mani tap at far corner.