I've always wanted a Subaru and now I have one. Got a 2006 Impreza NA with AT that was blown up to the shop. Customer could not afford it now it's my project car. Trying to read as many posts as possible and it looks like either en ej20 or ej25 hopefully ej255 for a turbo option and swap to MT will fit. I have read that the wiring harness would need to be changed over, ecu and a list of other components. Is there a preference to which engine to put in? The goal of the car is just to track so it will not be getting smogged any longer. 

if you could find STI engine and drivetrain, would be awesome for a track car - but probably MUCH easier to find WRX. get the rear diffs - final drives must match front and back.

 

plenty info at NASIOC too for stuff like this. Those guys are kinda snarky so, do plenty of reading before asking questions and put on something flame retardant.

Thanks. Was thinking about possibly keeping FWD so I don't have to put the whole rear drive setup together save some money and work.

No Subaru Impreza has been FWD since the mid 1990's.

You should just buy a Honda at that point

You should just buy a Honda at that point

Thanks. Was thinking about possibly keeping FWD so I don't have to put the whole rear drive setup together save some money and work.

 

 

FWD? as said above, a USDM 2006 is AWD - unless some kind of odd modification was done and if so, better to just start over for a project car I think.