Great tuner really woke up my Silverado
I think the Diablo Sport Tuner is a great investment for the money,it does everything they say it will do. And the menus are easy to navigate. It really woke up my Silverado, the multiple truck use is a nice option agreat s is being able to turn off the active fuel management
Works as described so far
No issues. Simply plug the device into the OBD2 port. A few light flashes then it's done. According to the display the vehicle is in V8 mode all the time. Have not used it long enough to know impact on fuel or oil consumption. Oil consumption is the reason I decided to try this.