Where do you find these maps? I don't see them on their web page.So your profile says you are in Arizona, is that correct? If so you should not be using a map rated for regular fuel. For example you said you are running the stage 1 91 octane map. California, Arizona, and Nevada has a lesser quality fuel than the rest of the united states for emissions reasons. For this, cobb made ACN(Arizona/California/Nevada) maps for their fuel. So there should be a ACN91 stage one map on your accessport for your car. If not, contact cobb.