Speedometer calibrator Rough Country

• Proudly made in the USA
• 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

In the box:

• Speedometer recalibrator
• USB update cable

Notes:

• • Fits gas and diesel models
  • Does NOT fit 07-13 4.3L models
  • One set can be used with one car ONLY, then it's blocked for any other