I just got mac lt's. planning on the install real soon. with the o/r h, do you have to get mil eliminator plugs or does a tune with my sct programmer work fine?
Both can do the job. I would prefer the SCT Tuner versus the MIL eliminators but thats just me. If you have a newer tuner you will have to have the tuner tune the 02 sensors off bc you cant do it yourself like you used to, you can thank the EPA for that...