bigkahunasbakery

the car I purchased is a 1999 impreza with a blown 2,5 motor. the 2.2 engine is out of a 1995 legacy outback wagon. the 2.2 is already in the the impreza now all I have to do is put the intake on. I have read you must change the wiring harness from the 2.5 to the 2.2 is this true. the intakes are identical down to the egr components if so which coil pack do you use

have a 1999 impreza rx 2.5 motor (automatic) bad dropped a 2.2 in all left is the intake with the wiring harness, will the harness work on 2.2 or do I change it with the 2.5 harness and if so what about the coil pack