I wanted to update every one on my experience with Cobb. Obviously Sam saw my post last Saturday and went ahead and took time to respond. I gave them a Call on Monday, they walked me through everything and I sent in my log, turns out here in Oklahoma we think 100% (non ethanol) gas is the best out there. Now I've seen some people run 87 or whine about poor fuel mileage and it has always perplexed me why they would buy a Raptor in the first place. I've always used what I considered the best Fuel, and oil available. I've always thought this truck has been just a bit off, it didn't accelerate as smoothly as it should and every once in a while it pinged very slightly under hard driving. I even took the head of the service department with me one day and he told me he could kinda feel it but with no cel's there wasn't much he could do. That's why I bought this programmer, hoping to get it to run like I thought it should, it only exacerbated my issues. This time though with one big difference, COBB. They took my log and saw my truck has been retarding the timing all because of the fuel I have been using. All of my own troubleshooting would have never revealed this since as far as I knew I was using the best. Turns out the truck and the tune we're designed to run ethanol gas. It runs incredibly better now. For the first time since I've owned it I now feel like it runs right. So I wanted to thank COBB very publicly, for their product, and most of all the service and support.