ga16 to sr20det hardness question
im mid way on my swap now im sorta confused i have read all the ga16 to sr20 swap threads but it has not been clear of this, can i use the engine hardness that came with my u13 sr20det? to plug in to the underdash hardness of a regular sr20de. and when they say i gotta swap the under dash harness does it mean the whole hardness like pic below thanks