It's okay and works as intended. 5.3 chevy
87 octane tune does seem to open up some power. 87 Tune has VERY hard shifts. Had to contact customer service. (Great customer service -Mike) He sent me a custom tune to fix that. 91 octane tune had very little difference compared to the 87. My truck was running rich with 91 tune using 91 octane fuel. Switched over to 87 running great! I input the actual size of my tires and it set my speedo -5. Very inaccurate. Had to adjust size to calibrate it. Autoanything has the best price for intune. Thnx
The Diablo Trinity T-1000 is good I guess for the options is has. As far as performance and horsepower gains, I can't really tell a difference to be Honest. To me it's not worth the price and much it cost. I'm not sure if I would recommend this product to another person, because I wouldn't want them to waste their money, and I get blamed for it.