07 Legacy GT what fits? (from 07 STI/02 WRX)

[PineAppleCawks]

Hello forum lurkers and posters. This is my first post in regards to legacies because I have spent the better part of a decade driving a WRX which is partially the subject of this post.

My WRX had a hybrided engine with the WRX heads and everything else in the bay swapped from an 07 STI. In addition to this it had just about every bolt on possible as well as a PPG dog box.

To avoid belaboring a sad story, last week after almost 10 years the engine gave out.

On the bright side, I think it might be time to get an adult car . My buddy who works at a shop tells me he has an 07 GT limited with 130k and my name on it. After a test drive and some soul searching on whether it is time to let go of my childhood race car I decided, I am going to buy it.

So here lies my question(s): What parts from my 02 WRX with STI block are swappable to the 07 legacy?

I understand I will probably not be able to use my exhaust or wheels, but my concern lies with things such as my EWG, downpipe, boost controller, suspension, transmission, and anything else you guys could possibly think of.

Also, I was hoping to confirm what turbo comes in the 07 GT as I have seen a couple different answers.

and as a side note only because I have not actually searched for this answer, what kind of numbers are safe to run on the stock tranny in the 07 GT.

Another question I had. How does the SI-Drive interact with a cobb? Is it possible to have different maps set to the SI-Drive that can be swapped to with the knob?

Thank you guys in advance! I am glad to be here and will continue to lurk around in the future!
Nick

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