A lot of us have done Brembo brakes retrofit.
3.3T's Brembo calipers bolt right on. You will need to get same size rotors as on the
3.3T, which are larger. 2.0T's rear dust shield also will not fit the larger rear rotor. I just bent the dust shield flat and drove like that for quite a few months, before replacing with larger ones for the
3.3T. At the time, I did a LSD retrofit too, so the rear 1/2 shafts had to come out, so that saved me a lot of work to change out the dust shield at the same time. Otherwise, I might have just left the old dust shield in place.
Do a search for Brembo retrofit on these Stinger forums, or on
G70 forums. Lots of threads already on this topic.