Hypertech 42003 - Hypertech Max Energy Programmers

The Most Powerful
Computer Tuning You Can Buy

Max Energy Programmers extract every bit of energy out of every molecule of fuel to provide more miles per gallon at partial throttle and more power at wide-open throttle.

50-state emissions legal

Easy plug-and-play installation

Optimize horsepower and torque

Improve fuel economy (Click to read testimonials)

Top Speed Limiter - Hypertech Max Energy Programmer Engine RPM 'Rev' Limiter - Hypertech Max Energy Programmer Transmission Shift Points and Firmness - Hypertech Max Energy Programmer Speedometer and Odometer Correction - Hypertech Max Energy Programmer
Top Speed Limiter
Raise the top speed limiter to match the speed rating of high-performance tires RPM Rev Limiter
Raise an engine's RPM rev limiter for greater performance Shifting
Adjust individual automatic transmission shift points and increase shift firmness Speedometer and Odometer Settings
Correct speedometer and odometer for non-stock tire sizes and/or rear gear ratios
Cooling Fan 'On/Off' Temperatures - Hypertech Max Energy Programmer Vehicle Diagnostics - Hypertech Max Energy Programmer Back-To-Stock or Change Options - Hypertech Max Energy Programmer Internet Updateable - Hypertech Max Energy Programmer
Cooling Fan On/Off Temperatures
Lower cooling fan on/off temperatures to match thermostat rating Vehicle Diagnostic
Read and clear diagnostic trouble codes to turn off check engine light Back-to-Stock or Option Settings
Reset vehicle to stock settings or change options at any time Internet Updatable
Update software over the Internet
(USB cable included)

NOTE: Adjustable features in the chart above depend on vehicle year, make, and model. Click More Info below for details.