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2002 GMC Sierra Power Programmers & Performance Tuners

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


GMC '02 2500HD

Reviewed By Bob J (Springville, UT) Reviewed for a 2002 GMC Sierra —5/17/2013 6:10 AM

I've long been skeptical of the tunes you might get from the simple programmers but relented to try it out on my GMC 6.0 gas it worked flawlessly, easy to use, simple and straight forward. I had the info in and its never run as smooth and started as fast, a 1 second crank and its running no hesitation, most of all the tires now match the speedo. I'm a believer. Bob J.

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Hypertech HyperPAC Reviews


Awesome

Reviewed By Tyler G (Chapman, KS) Reviewed for a 2002 GMC Sierra —3/11/2011 10:51 AM

Changed gears and tires and the speedometer was off but the hyperpac put it right back on the money. Didn't notice anything with the added power. But love the gauges an awesome add on to the truck.

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DiabloSport inTune i2 Tuner Reviews


Just what the Dr. Ordered

Reviewed By scott w (Edmond, OK) Reviewed for a 2009 GMC Sierra —9/7/2017 8:41 PM

I needed the Diablosport tuner to turn off my obnoxious AFM, and it did as promised. It also delivered harder shifts and more power even in the mildest tune. The surprise was that my Sierra now has an extra 30 minutes of highway range due to more MPG.

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