Hypertech HYP-732501 Speedometer Calibrator Programmer for GM Trucks & SUVs

The Hypertech 732501 Speedometer Calibrator is a dedicated plug-and-play programming module designed to correct inaccurate speedometer and odometer readings caused by aftermarket tire sizes or non-stock rear gear ratios. Unlike purchasing a full-featured tuner, this unit delivers focused recalibration functionality at a budget-conscious price point.

When oversized tires or regeared differentials are installed, the factory ECU can no longer accurately interpret wheel speed data — resulting in a miscalibrated speedometer, incorrect odometer readings, skewed fuel economy estimates, and improper automatic transmission shift points. The Hypertech 732501 resolves these issues by reprogramming the vehicle's computer directly through the OBD-II diagnostic port.

Key Features:

• Corrects speedometer and odometer readings for tire sizes up to 54 inches in diameter (application dependent)
• Adjusts for non-stock rear gear ratios (application dependent)
• Simple plug-in installation via the vehicle's OBD-II under-dash port — no tools required
• Integrated LCD display with intuitive menu navigation for quick setup
• Reads and clears diagnostic trouble codes (DTCs)
• Back-to-stock tuning capability — returns the vehicle to factory settings when needed
• Includes USB cable and CD with software for internet-based updates and upgrades
• Black plastic housing; maximum speedometer value: 150 mph

The Hypertech 732501 is engineered for GM trucks, SUVs, and cars — covering 2007 and newer GM gas trucks and SUVs, 2006 and newer GM diesel applications, and 2006 and newer GM passenger cars. It delivers the speedometer recalibration functions of Hypertech's Max Energy Programmer series in a standalone, cost-effective device.