2009 Hummer H3 Speedometer Calibrators

Hummer H3 3.7L 2009, Speedometer Calibrator by Hypertech®. The law requires accurate speedometer readings, even if you have non-stock tires or gear ratios installed. The Speedometer Calibrator is created to provide that specific...

Hummer H3 3.7L 2009, Max Energy™ Programmer by Hypertech®. Premium Octane: +18HP +23TQ. Regular Octane: +16HP +22TQ. The Max Energy Programmer is one of the most full-function tuners on the market - providing high levels of power and...

Hummer H3 2009, New Version California Edition Speedometer Calibrator by Hypertech®. This premium product is designed with precision craftsmanship to recalibrate your speedometer and ensure its efficient operation. Made to the highest...