K20a3 in 2007 civic Si
An 07 Si and a 2002 Ep3 Si , would the A3 with tranny run in the 07 si with the 07 harness and ecu or would the a3 harness and ecu have to be used ? Vice versa with the K20Z3 going into the ep3, would kpro be needed for both of these swaps? Serious question I know it sounds stupid obviously but any insight much appreciated !
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