bkane

Thanks for some ideas and here is where it's at. New crossmember, flywheel and clutch. The motor is bolted in ready for ??? here's what I'm thinking and could use some more input. Can I put the electrical engine harness from an 07 WRX onto the 04 engine or did some of the sensors change? I came across an 07 WRX body harness already so if the harness will work on the 04 engine I should be almost there. Once I have all the wiring hooked up can't I just get the ecu reprogrammed?? And yes, next time turbo to start with, although I probably learned quite a bit more about the car doing it this way.

Ok, so I think I'm in over my head, got an 07 impreza standard 2.5 with 5 speed. The motor and wiring harness were removed to install regular turbo motor. Bad investment? Problem I incountered right off the bat was the wiring harness, after getting all the info here is what I'm left to figure out. The new motor and wiring harness the car came with is from a 2004 base turbo impreza with an automatic trans and I need to put this into a 2007 Impreza non-turbo 5 speed. What will make this work? Do I need the harness out of a 07 turbo with standard trans to make this work/ or is this much more complicated than that?