is this an easy swap or do i need to do some serious fab work. what will i need to do it? I got an 04 wrx and i can get brembos of an 04 sti for cheap but i want to keep it cheap not spend a lot of $$$$

thanks for the input

Been covered before... do a search :)

fronts are bolt on
rears require a bracket and either a custom rotor or set of custom parking brake shoes

Don't forget, wheels sometimes a problem with the Brembos, they need space.