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Discussion Starter #1
I know the 04 is 2.5 single overhead cam and will bolt in but will I need 04 harness, computer and the throttle body is electric but can I run my stock cable fed throttle body???
I'm just going to buy engine from scrapyard but will the 04 motor run on 03 computer without tons of extras and or modding???
 

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The STI motor is not a SOHC...........and if you have no clue about this stuff stick with what you already have,the 2.0L. Why would you swap a whole motor when you can just replace the valves in the old one?
 
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