The Ram 2500 Speedometer Calibrator by Rough Country is tailored specifically for diesel engines from 2010 to 2017. This essential device ensures your vehicle's speedometer is accurately calibrated, even after installing larger tires, providing peace of mind and precision on the road.

Designed with ease of use in mind, this speedometer calibrator directly connects to your vehicle’s Diagnostic Link Connector Port. Within minutes, it reprograms the speedometer, ensuring it reflects true speed readings which are crucial for safe driving. Your vehicle's original equipment computer tracks speed based on stock tire dimensions which can result in inaccurate readings when larger tires are installed. This handy gadget not only updates the speedometer but also adjusts the ECM to correct shift points and recalibration of the electronic stability control system. This comprehensive approach means you aren't just changing a display number; you're ensuring your vehicle adapts appropriately to the modifications made.

Features

• Precisely reset your speedometer readings for accurate calibration with larger tires.
• Simplified Plug and Play installation.
• Updates the original equipment ECM to adjust shift points for larger tires.
• Recalibrates electronic stability control to seamlessly integrate with larger tires.
• Diagnose check engine light and service messages with integrated code reading capabilities.
• Convenient option to revert to stock settings pre-service.
• Backed by a 1-year warranty for peace of mind.

Take the guesswork out of your vehicle's performance with the Rough Country Speedometer Calibrator. This device is for diesel models only and emphasizes long-term accuracy and vehicle compatibility. Keep in mind, emissions certifications restrict use or sale in California. Offering dependable functionality, it locks to a single vehicle until reverting to stock. Feel free to reach out with questions or for more product information. We provide installation and customization services at our two locations in Austin, Texas and the Los Angeles, California area. Call us directly at 512-982-9393 (TX) or 562-981-6800 (CA).

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov