The set up was easy. Gas savings, not so much. I got the Level 1 tune. My gas mileage went from 28 mph on the highway to 19 mpg. Could be a number of factors. I just redid my timing, crank and etc. The power is there. But I don’t have the ‘pop-pop’ sound. Maybe the 1+ has it. I was expecting a false code to disappear with the tune. It did not. But that because I bought a cold air intake that sends the false code. Or I have a dirty MAF sensor. Great power. The team was great. The purchase was easy. The set-up was dummy proof. Make sure you own a battery charger. I got a high-speed battery. But, low bargain batteries will die if the tune takes more than 35 minutes. And, I DO have the charger!