Review on 🏎️ Rev Up Your Ride with the 8400 DiabloSport inTune i3 Performance Tuner by Jerome Brooks

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 cheap looking tuner really helps in every aspect of the drive. I've got 10000 on it and it's 0-60 times better than new, I'm in the low 6 second range now.