🏎️ Rev Up Your Ride with the 8400 DiabloSport inTune i3 Performance Tuner Review

Easy to use. Feeling that there is a little difference in the truck. The product may have some hype and requires some homework on what it does. Class C

If in doubt whether to buy it or not so worth it I can burn it now and don't know how much gas saved but who cares, my jeep is on 35 and on a 3 inch lift it's really heavy and revs over 100!

Love the fact that it has a speed limiter when I borrowed my jeep. To prevent other drivers from abusing my car. It was also easy to set up and use. Technical support was excellent as always. I am very happy with this purchase.

This is a great tuner for stock vehicles. I have a 2010 Jeep Grand Cherokee S Limited with a 5.7 liter engine. I easily downloaded the latest software over his wifi and put on a 91 octane Diablo song. I change the throttle to 20% and all shift points to 6400 rpm. I could go back to 5800 or 6000. Now the drivetrain is silky smooth and I can squeal all the tires jumping off the line with it. I get a little more mpg but the performance is waiting for you now. For $400 and no further upgrades, this