Hypertech Inline Speedometer Calibrator 2010-2018 Toyota 4Runner

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The Hypertech Speedometer Calibrator can correct your speedometer for non-stock tires and/or gear ratios. The simple on-screen menu quickly guides you through the process, and in a matter of minutes, the vehicle's computer is reprogrammed for accurate readings. Speedometer Correction For Gears All valid gear ratios supported Speedometer Correction For Tire Sizes Lower limit 50% of stock tire size, no upper limit Internet Updateable Show more