Those air-water intercoolers are just a bit bigger than OEM. I dont think those are worth the money unless we get good numbers from the dyno.
Would love to see a comparison dyno for this mod alone.
F10 550i M-sport: Space Grey/Oyster Black
E39 M5 : Carbon Black/Caramel
E39 520i : Titanium Silver/Beige (Sold)