Upgrade your horsepower in minutes with our inTune i3 performance programmer. It is easy to install and plugs right into your vehicle’s OBD-II port. Our tuning team maps out all of the i3’s tunes for your exact car or truck. Our goal is to make the biggest power gain, with the largest choice of performance options. The i3 features the latest electronics too; find out more about what makes the i3 the best handheld tuner available today!