Wrong, wrong, wrong. I am not a dealership. My cost on the PCM is almost $500. Plus, since we are a for profit shop, we mark up and charge labor. Plus the reprogramming that must be done with a Tech II scanner and a subscription to the Delco site to do a pass through programming. Most shops can't do this, and you certainly can't do it at home. Perhaps a little research before you shoot me down on pricing?