Review on 🔥 DiabloSport 8245 Performance Programmer Gen by Antonio Taveras

This programmer is cool I didn't buy it to increase fuel economy I don't give a damn about fuel economy. I installed it on a 2015 GMC Sierra SLT 6.2L 8 speed. I selected the Diablo tune, turned off AFM/DOD, disabled the speed limiter and set the shift points to hard. I immediately noticed a difference in performance and handling. And the most amazing thing is that my average fuel economy is already up 6mpg and I've only driven it a hundred miles and it's still going up. And I drove harder than usual. I had to make sure the speed limiter came off lol. MPG was the last of my fears, I thought I was actually going to get worse. But I was completely wrong.