[Dylan m]

I just bought this k20a3 kinda regret it but was what was available in my area, I have my 2007 Honda Civic si with tho motor torn out already blown. I was just wondering what is going to be needed for this swap because I feel like I’m going to need a ecu and wiring harness

 

[Chaos Pilot]

Wiring harness should match up no problem and your old ecu should work fine.