Rough Country® 90020T - Speedometer Calibrator

2 reviews|Item # mpn4846519971
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    Notes:
    • This is a Race Only product that is to be used solely for competition. It cannot be used on vehicles that are operated on public streets, roads or highways. Its use is limited to closed-course and open-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. Shipping Restriction: CA, NY, ME.
    Authorized Dealer
    $259.95
    In Stock (3)
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    Vehicle Fitment

    Ford

    Specifications

    Screen Control
    Button Control

    Includes

    • (1) Speedometer Calibrator
    • (1) USB Update Cable

    Features

    • Resets your speedometer to accurate readings for larger tires
    • Easy Plug and Play connection
    • Updates OE ECM Shift Points to accommodate larger tires
    • Recalibrates Electronic Stability Control to work with larger tires
    • Reads diagnostic codes like "check engine light"
    • Option to return to stock settings
    • 1-year warranty

    Product Details

    Speedometer Calibrator by Rough Country®. Put the finishing touch on your lifted vehicle with Rough Country’s Speedometer Calibration Device! This easy-to-use Speedometer Calibrator helps you quickly and easily reprogram your vehicle’s speedometer to match the output of your larger tires.

    Your vehicle's computer is designed to track the speed based on your stock tire height. When upgrading to larger tires, there will be a discrepancy between your actual speed and the readout on your speedometer.

    This plug and play device connects directly to your vehicle’s Diagnostic Link Connector Port and in just a few short minutes your speedometer reads true again! Rough Country’s Speedometer Calibration Devices don’t just simply change your in-dash readout, they update your vehicle’s ECM, ensuring accurate shift points and proper electronic stability control.

    Finally, you can get an affordable and accurate speedometer calibration with an easy and intuitive setup process! This device can also easily read and check all diagnostic codes to help you manage “check engine light” and “service needed” messages, and also includes a function to reset the speedometer back to stock prior to servicing the vehicle.

    Part Number:
    90020T

    Reviews

    (2)
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    /5
    1-2 of 2 Reviews
    5 of 5
    Impressive
    I installed this yesterday and took a trip of a little over six hundred miles Truck actually goes into eighth gear now. Had a three-mile-per-hour gain in gas mileage. Was not expecting the gas mileage change I had to tweak the tire size. I have thirty fives on my truck but finally got the speedometer set at thirty-three and a quarter on tire size I checked it against satellite so it's really close. I also had some codes on my truck and it cleared them for me at my request I did write them down just in case I get them again. I Will look them up later I was wanting to change my gear ratio and this device will actually let me program it to new gears after I have it done. Bonus overall I am very pleased with this purchase
    Rough Country® 90007 - Speedometer Calibrator
    Posted by David (Hot Springs, AR) / July 01, 20212016 Ram 1500
    4 of 5
    2014 Ram 2500 6.4L Hemi
    Basic set up with a nice case. The plug and play adjustments are easy to cycle through. I have a 2012 Jeep JK also and was going to adjust for tires on it also, but due to the interface on this device, it will only function on one vehicle. The VIN is stored in the first vehicle installed on. I did have to lower my tire size 1in smaller to get the actual true speed. Rough Country said this is the proper way of getting the actual speed.
    Rough Country® - Speedometer Calibrator
    Posted by Jeremy (Huntington, WV) / December 27, 20192014 Dodge Ram

    Questions and Answers

    (0)
    If you have any questions about this product, please don't hesitate to ask us. We will be happy to help you!