Does any one know
 

Does any know if i have to have a remap i have removed my 1993 wrx engine and fitting a 2000 engine

As long as all your bolt on parts are going back on ie inlet manifold/injectors etc then no you don't mate:thumb:

nice 1 that what i was going to do :)

Are you also fitting the MY00 ecu ?

is the 2000 engine an sti? theres lot to consider here. The inlet wont fit as its a different phase inlet. you'd be better swapping the heads around.