youll need the engine mounts for the 1.8t engines. the 1.6 ones sit differently so the engine wont be straight.
would also advise changing the brakes to the octavia vrs, tt etc setup with the 312mm disc setup.
to do this from the 1.6 youll need - hubs form the 1.8t 1.9TDi (110bhp + models) 2.3 or 2.8 golfs,boras,leons,octavias,tt or a3s off the top of my head.
Callipers and the carriers from the Vrs, cupra, TT 180+ models, anni golf or the V6 models.
if you cant get the carriers from those models then they are avalible seperatly.