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I just bought a 2011 WRX hatch with a blown motor and i cant find anything that makes sense on doing a jdm swap. I am getting alot of conflicting info and the good information i am getting is only for older cars. I m looking into buying a jdm motor and i heard because its a 2.0 not a 2.5 i will need a new ecu and i have also heard the usdm ecu will run the jdm motor fine even though its smaller. Will all the parts off my usdm swap over if i just wanted to to use the jdm longblock? can anyone steer me in the right direction
 

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When you get the 2.0 strip everything off of your 2.5 and put it on the 2.0 just use the 2.0 as a long block basically and it will run like it’s brand new🙂 make sure you use all of your 2.5 sensors.. cam gears.. etc and use your 2.5 wiring harness
 
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