Shop for Calibration Devices for your 2004.5-2007 Dodge 5.9L Cummins. When installing a lift kit and adding larger tires and/or changing the factory gear ratio you can run into common issues such as the speedometer reading incorrectly and erratic transmission shifting. A calibration device lets you quickly and easily recalibrate your speedometer while also restoring accurate shift points and proper function of the electronic stability control. Calibration devices can be an essential tool for many truck enthusiasts. They allow you to calibrate your truck for large aftermarket tires, read/clear diagnostic trouble codes, adjust your speed limiter, and more. Devices are available for a wide variety of vehicle applications. They easily install in minutes, and some have the ability to be updated via the internet. Best of all they provide the option to return the vehicle back to stock settings if required. Shop all the leading manufacturers such as Superchips, Hypertech, and more!