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GMC Sierra Power Programmers & Performance Tuners

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Latest Customer Reviews

Hypertech Max Energy Programmer Reviews


Tuner for speedo correction

Reviewed By Roger G (SAINT SIMONS ISLAND, GA) Reviewed for a 2004 GMC Sierra —7/2/2015 4:55 AM

I was very pleased with the ease of use of this tuner. I bought for my speedo correction after a rear end gear change and a tire change. When I programmed everything the speedo was dead nuts on to my GPS. 5 miles later my ABS and brake warning lights come on. Called hypertech... said it was a known fault of the abs gm computer and I would have to continue to input tire size until I got within 10% of the front to rear wheel speed. I dropped it 1/2" and speedo is off by 1.5 mph @60mph. Recommend

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Superchips Flashpaq Tuner Reviews


superchips Autotune

Reviewed By Jimmy E (Theodore, AL) Reviewed for a 2009 GMC Sierra —3/7/2015 3:14 PM

auto tune has the best prices on things for my truck . so far I bought a superchip , K&N AIRFLOW KITS I AM VERY HAPPY WITH BOTH OF THEM GOOD CUSTOMER SERVICE AND GOOD PRICES ON GOOD ITEMS ,. THANK YOU AUTO ANYTHING

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Superchips Cortex Programmer Reviews


Sierra 1500 5.3L

Reviewed By Keneth S (Jonesville, LA) Reviewed for a 2013 GMC Sierra —12/23/2014 8:37 PM

Easy to use programs in minutes. I can tell A difference. I just program with the quick tunes

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