If your going RS2000 mate and using the MTX75 you will need the sub frame to as the back mount is different has a extra bit welded in! Also you will need all the Ingition module/wiring but you'll be happy with the performance if you do I run a MK5 RS2000 as a trackday car last time out went past a ST150 on the straight the old boys wouldn't believe me the engine is standard with over 100k lol