i build these all the time.I can convert it for you and you will never even tell it was ever a dx.My harness's look the same as an si.no wires ran all over the place and i guarantee no ecu codes.Do you have the dx harness that came with that car? I will not need the SI harness at all.No reason to cut it up when i have every plug here just for doing this.I even have like 5 dizzy plugs left.just give me a call and i will talk to ya about it.. 813-377-7272 thanks.nate