Hypertech - 730129T - Speedometer Calibrator - Inline Speedometer Calibrator 2019-21 GM Trucks And Full-Sized SUVs

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This module is perfect for vehicles with computers that don?t allow for tire size and/or rear gear ratio correction or re-calibrate for tire sizes and/or rear gear ratios outside t he range of programmers. - IT IS BUYERS RESPONSIBILITY FOR ITEM FITMENT BUYERS VEHICLE PLEASE DO YOUR OWN RESEARCH FOR ITEM FITMENT OR PLEASE ASK US BEFORE BUYING THIS ITEM IF YOU ARE NOT SURE THAT THIS WILL FIT YOUR VEHICLE. Show more