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Discussion Starter · #1 ·
i just blew my engine in 2012 WRX STI and rather than rebuild it i am thinking about replacing it with 2018 STI engine. Wondering if anybody knows if the 2018 engine would be a simple plug n play type install, or do i risk having certain functions not working?
thanks
 

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As far as I'm aware the ej257 is the same throughout
 

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As far as I'm aware the ej257 is the same throughout
Not universally true.


OP -- yes the 2018 should be a direct fit to the 2012.
 

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Appears wiring harnesses are different.
Based on what?

I can't think of a single sensor or controller that is different between the two engines.
 
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