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Marietta Performance Chips

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Latest Customer Reviews

Hypertech Speedometer Calibrator Reviews


Does exactly what was needed.

Reviewed By George S (Brownsville, OR) Reviewed for a 2013 Dodge Ram —4/22/2015 8:09 PM

Speedometer is dead accurate with 37x12.50r20 Nitto Trail Graplers on my 2013 Ram 2500 6.7L Cummins.

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Hypertech Max Energy Programmer Reviews


hypertect tuning

Reviewed By James B (Chapmansboro, TN) Reviewed for a 2007 Chevy Silverado —4/22/2015 6:30 AM

can't really tell that much difference gas milage about the same

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Hypertech Interceptor Tuner Reviews


Hypertech Interceptor Tuner 2014 Toyota Tundra 4.6 4x4

Reviewed By John S (EMERADO, ND) Reviewed for a 2014 Toyota Tundra —4/21/2015 6:57 AM

Got rid of sensitive throttle, changed shift points to use engine power more effectively and increased my mileage by 2 mpg. It makes the truck fun to drive with the added zip. Reliability is unknown at this time. I would buy again.

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