Wrx to sti.... What else??
 

I have a 95 wrx and im going to be putting mr d's sti engine in soon :) i have a few questions

do i only need the loom and ecu to change from wrx to sti? If so will i require a remap asap once its in?

Cheers guys

no need to change the loom as far as im aware.

you can run the pre 96 sti engine with any pre 96 import ecu no problem.

An someone point out wether ill need the ecu and loom because theres no point getting unless i really require it lol its a v3 sti goin into 95 wrx cheers

you should use the right ECU for your turbo, ideally, and the one that produces the most power, obviously :)

ahhh v3 sti into a 95 wrx is a different story. you will need to swap bits. v3 ecu is 3 plug, v2 is 4 plug. easiest way would be to swap just the short motor i think.
if you want to swap manifold and heads then it gets trickier.