Hi, I'm Nate. I own a 92' Legacy wagon. My original phase 1 2.2 started knocking horribly so I started the quest for another 2.2. So I bought a phase 2 2.2 out of a 2000 Impreza. I have come to realize the ecu/harness won't work and I'm on a tight budget... should I swap my heads and intake manifolds?