I've made lot of discussion and searching about induction.
First of all, the value for money of a remap, won't be there for the intake.
However this doesn't mean that an upgrade is waste of money.
Bugdet. How much money you want to spend.
I have installed MST turbo inlet and 've done also some upgrades in the front part of the intake.
3 drills at the front, the block-off plastic, a K&N filter and removed snow-guards.
I have a R600-like induction with bigger turbo inlet elbow.
Imho if i have to choose again, i would have bought the full MST intake.
With MST you have the ability for open or close airbox and the sound is great.
Performance is maybe at the top3 induction.
R600 sounds also great and looks fantastic at the engine bay, very OEM look.
You can buy MST inlet/hose + R600. Top performance also.