If you're talking about the standard box then it is the same I think.
However aftermarket intakes such as neuspeed/evoms/forge/dbilas are different for the models:
Audi S3/Leon Cupra/Golf Gti Ed 30 all use the K04 turbo that uses a remote located DV in the engine bay, where as the Leon FR, Audi 2.0T and the Golf Gti use a K03 Turbo with the DV mounted underneath the car.
As a result the Audi S3/Leon Cupra/Golf Gti Ed use a different intake when you are looking at aftermarket intakes.