Paul,

They are designed to get an air feed from morette style, I suppose you could blank off the original intake and cut out below the box but above the inner arch...then duct into the air box that way, the other carbon adapter refers to the turbo intake hose to air box...from memory the cone filter has a neck of approx 90 - 100 mm the carbon adapter reduces from this to the 70mm intake hose onto the turbo....

Ian