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2008 GMC Sierra Power Programmers & Performance Tuners

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Latest Customer Reviews

Range Active Fuel Management Disable Device Reviews


RANGE AFM DISABLE

Reviewed By walter j (LEWISTON, MI) Reviewed for a 2008 GMC Sierra —4/23/2018 2:19 PM

ORDERED THE RANGE AFM DISABLER AFTER BROKEN VALVE SPRING KILLED MY ENGINE SWITCHING BETWEEN 4 AND 8 CYL. HAD ONLY 144K ON MOTOR. DEVICE WAS EASY TO INSTALL AND WORS PERFECTLY. WOULD RECOMMEND IT TO ANYONE WANTING TO STOP THEIR MOTOR FROM SWITCHING.

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Edge Evolution Programmer Reviews


You can feel a difference

Reviewed By Bobby S (Bulverde, TX) Reviewed for a 2008 GMC Sierra —1/13/2017 5:56 AM

Easy to install and you can certainly feel a difference in torque/power. Easy to install and the extra gauges are neat. The only issue I am having is that when on the highest setting and I run wide open it makes my truck ping a little. I'm gonna run a few more tanks of premium fuel through the truck then investigate further. I will purchase this product again for my future vehicles.

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Hypertech Max Energy Programmer Reviews


Hyper Fast.

Reviewed By Jeffrey F (Schenectady, NY) Reviewed for a 2008 GMC Sierra —8/28/2014 12:54 PM

Fast shipping. Excellent value. Only issue I had was having to update the programmer new out of the box? Otherwise easy install. Using the econ setting so I don't necessarily feel a performance gain but hoping for better fuel mileage. Only programmer I use is Hypertech.

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