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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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Edge CS Evolution Programmer Reviews


The Way TO GO

Reviewed By Richard C (Temple, TX) Reviewed for a 2002 GMC Sierra —3/16/2013 7:35 PM

This programmer really "wakes" my Duramax up! The Extreme setting gives you the performance. Tow mode allowed me to pull my 35' 5th wheel TT at 75 - 80 with out a strain, getting 10+ per gallon. Enconomy mode boosts mileage an easy 5 to the gallon, if you can keep from playing with the wanna bees, cause even the economy mode wakes the engine up! Making this purchase was one of the best automotive moves I've made since I bought the truck in '02.

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DiabloSport inTune I-1000 Tuner Reviews


Cheapest HP available!

Reviewed By Jason P (Whiteville, TN) Reviewed for a 2002 GMC Sierra —9/22/2012 7:01 PM

My truck has the 4.8L engine so after I put 33" tires on it I thought the only way to get my power back was to change the gearing. I was wrong! I`ve only used the 87 octane tune and my truck already feels crisper than it did before I put on the 33's. The ability to correct and firm up my shifts in addition to the extra power is well worth the money. If you are even considering buying one just do it. You will not regret it!

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