Restore Speedometer Accuracy for Larger Tires: Complete your lift upgrade with Rough Country's Speedometer Calibration Device. Specifically engineered for lifted vehicles with oversized tires, this easy-to-use calibrator reprograms your speedometer to deliver precise, true-speed readings, eliminating guesswork on the road or trail.
Seamless Plug & Play Installation: Installation is fast and hassle-free thanks to a simple plug and play connection through your vehicle's Diagnostic Link Connector Port. In just a short session, your speedometer is recalibrated to match your new tire size without the need for complex tools or programming knowledge.
Enhanced ECM Shift Point Adjustments: This advanced device doesn't just update your dashboard, it updates your vehicle's ECM to optimize transmission shift points. That means smoother shifting performance tailored to your new tire configuration for a more refined driving experience.
Maintains Electronic Stability Control Performance: Rough Country's calibrator also recalibrates your Electronic Stability Control system, ensuring your vehicle retains factory-intended handling and safety even after upgrading to larger tires.
Convenient Return to Stock Settings: Need to revert back to factory calibration? The device includes an easy reset feature that lets you restore stock settings anytime, ideal for vehicle servicing.
Warranty-Backed Peace of Mind: Backed by Rough Country's 1-Year Warranty, you can recalibrate with confidence knowing your investment is protected.
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Always confirm the fit for your exact trim before ordering — ask us if you are unsure.
