Recalibrate Your Speedometer, Odometer, And Part-Throttle Shifting At The Push Of A Button With Hypertech!

If you’ve installed non-stock tire sizes for more grip on the road, taller tires for more traction on the strip, or a different rear gear ratio, you must reprogram your vehicle computer for correct speedometer and odometer readings, as well as correct part-throttle shifting. That’s because the electronic “brains” in late-model vehicles are programmed to work properly only with the factory-installed tire size and rear gear ratio. The Hypertech Power Programmer III lets you reprogram your vehicles’s computer for non-stock tire sizes and/or rear gear ratios at the push of a button!

Here's How It Works!

The vehicle computer calculates your vehicle’s speed based on the diameter of the stock tires. If you’ve installed taller or shorter tires, or changed the rear axle ratio, the vehicle computer doesn’t know how fast your vehicle is really going. As a result, the automatic transmission may not shift correctly and the speedometer/odometer readings will not be accurate (as required by law). The Hypertech Power Programmer III lets you select different tire sizes and rear gear ratios, then stores that information in your vehicle computer. And that’s just the beginning!

Modifying your vehicle has never been easier. Just plug the Power Programmer III into your vehicles’s underdash diagnostic port, answer a few simple “yes/no” questions, and the Power Programmer III does the rest. You’ll get Hypertech’s exclusive Power Tuning that maximizes your vehicles’s performance and brings out the best in popular performance modifications like low-restriction air cleaners and/or cat-back exhaust systems. And best of all, you can change your options or restore the stock tuning whenever you want.