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Discussion Starter · #1 ·
Hey I have a 2018 Subaru wrx. I want to go port and direct injection. I just don’t know how to hook the injectors up do I need a wiring harness or can it even be done? I know I need the intake manifold, fmic, and injectors. I just don’t know what I need to get them to work. I really just want to do it so I don’t have to worry about carbon build up.
 

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The heads are different between the two cars. It is not a direct swap.
 
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