lol, it depends on what car you have and model, but the answer is a D series harness. Just depends on whether your car is a 5th gen or a 6th gen., But what is the need for a different harness. Do you not have one.a d- series you ass hole there all the same
What car is this going into? That's kind of a big deal.alright i have a y8 head with a z6 block...what kinda hareness do i need??