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2011 GMC Sierra Performance Chips & Programmers

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Latest Customer Reviews

Superchips Flashpaq F5 Tuner Reviews


SuperChips Flashpaq F5

Reviewed By Donald E (Gilbert, AZ) Reviewed for a 2011 GMC Sierra —2/27/2018 8:23 PM

Bought this to turn off AFM. Only tried fuel save flash with AFM disable, and MPG has decreased slightly. Have always had good mileage as I drive with light foot. Mostly stop/go so far, so jury is still out on highway MPG...

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Hypertech Max Energy Programmer Reviews


Satisfied overall

Reviewed By Jeremy M (Barker, NY) Reviewed for a 2011 GMC Sierra —1/1/2018 11:00 PM

Had to install upgrade out of the box which was a little frustrating, but not difficult. Getting through the tuning install was very easy as the unit guides you through step by step. Changes in performance are very noticeable and there are many options to choose from. Overall appearances are nothing special but the unit isn't dash mounted, unplug and store the handheld unit in between tunes. One thing that was very disappointing was when I dropped the handheld unit from table height,case split

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Bully Dog GT Platinum Tuner Reviews


Review

Reviewed By Guy S (Sneads Ferry, NC) Reviewed for a 2011 GMC Sierra —11/7/2014 9:02 AM

I have a GMC Sierra, 2011 5.3L vehicle... This item roughly increased my MPG from 17 to 19.5 for both highway and city use. Now I was really concervative with my driving, if your punching the gas pedal your not going to get close to that. The system did change the shifting of my vehicle, I notice an improvement of shifting and responsiveness, the only problem I had with this was a faulty cable upon purchase. I called and a replacement was sent to me automatically free of charge! Good service!

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