Wrx v3 engine swap into a Subaru legacy gt bf5!

[Ras Hotu Wai]

Kia Ora to one and all!

Very shortly in the next few weeks i should have finally acquired my new engine for my engine transplant to replace my old worn ej20g (Sob...), a nice one i picked up for cheap and it is a wrx v3 engine. Reasonable condition too i must add!!

Anyways i was wondering what else would i require to successfully transplant the new wrx v3 engine into the old girl, Legacy gt bf5?

I am a first car owner and want to do this engine rebuild and re modify some justice, i know i would need a new ecu, i think the new engine comes with a ecu but i am not sure but asides from that and the wiring loom, does anyone know what other things i might need or require?

I suspect it might need another fuel pump out of a wrx v3.

For now i am just trying to figure out what else i may need to make this engine transplant work, to finally get my car going and road legal again after two years of poor neglect.

Any help or advice i would greatly appreciate!

Tena Koe

Hotu Wai Ariki, a first time engine transplanter!

[Koom]

You could just bolt your intake manifold onto it and use the BF5 ECU without having to mess around with the wiring.

[Ras Hotu Wai]

I was just wondering would that affect the performance of the engine and car or would it be okay to just utilise the factory ecu and manifold and that?

I am deeply grateful for the advice and cheers mate for the info!

[soopersubaru]

 Koom said:

You could just bolt your intake manifold onto it and use the BF5 ECU without having to mess around with the wiring.

+1 Easiest and best way for the first timer to do

will run well, simple job to do

[Ras Hotu Wai]

Thank you so much soopersubaru for the great advice,i really appreciate it.

+2 for you for your advice and i will definitely try what you have mentioned, thanks once again