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Yes it can be made to fit. 2015 ej257 really isnt much different than a 2011 ej257 as found in the 2011 hatch STi.
 

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Sure. You’ll need to figure out the dual avcs but physically it’s exactly the same as the 255
 

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I would install an OEM longblock.

What's wrong with your existing motor?
 

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Discussion Starter · #5 ·
Zax,
I was racing my friend and I hit 3rd gear already red lining and I was ready for he next gear but I accidentally shift back into 2nd gear and the engine blown. I mean like at first it had a rod knock but I couldn’t tow it because I live on hawaii I drove it all the way home. And now it’s bad ticking like shaking nails in a box. But we are going to get a new engine perhaps the same ej255
 

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Zax,
I was racing my friend and I hit 3rd gear already red lining and I was ready for he next gear but I accidentally shift back into 2nd gear and the engine blown. I mean like at first it had a rod knock but I couldn’t tow it because I live on hawaii I drove it all the way home. And now it’s bad ticking like shaking nails in a box. But we are going to get a new engine perhaps the same ej255
If you are installing a full longblock, go with the EJ255.

If not, have the block disassembled and figure out what was damaged.
 

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Xjman wouldn’t I have to get the sti front and back axles as well too?
No, but there is no advantage to installing an EJ257 in your car.
 

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Why would you need axles? I’m confused as to that line of thought.

You’ve got multiple options. All of them extremely expensive. So your cheapest is probably buying a used long block then having the block rebuilt and the heads machines followed by new shortblock and rebuilt heads.
 
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