For comparision, we charge right around a grand to rework harnesses, and 650.00 for new, custom-configured units. If you or a buddy are proficient in rewiring efi harnesses, we do sell power centers, parts and such, that you will need to do it yourself, at a fraction of the cost. If you are buying, it's absolutely cheaper and more reliable to buy new. To add to the confusion, properly programming the pcm, or chip is also necessary, for many more reasons than just deleting the security system, which will not allow the engine to remain running. Hope this helps.