Reviewed By Dennis B (LIVINGSTON, TX) Reviewed for a 2018 Chevy Silverado —6/10/2020 9:56 PM
What a difference this Diablo Sport has made with my mileage. My 2018 Silverado gas engine jumped from 14 and 15 mpg combined driving city and highway by 6 mpg with just the basic tune. If there is one negative it's the tech help. I had an issue with the download and called for assistance twice. Both of the tech nerds were not at all helpful and acted as if I had interrupted their video games. Then I got Rick. Friendly helpful and solved my problem in seconds, wish I got him first.