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.

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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 the range of programmers.

Emissions Certifications: Not for sale or use in California

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