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2011 GMC Sierra Performance Chips & Programmers

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Latest Customer Reviews

Range Active Fuel Management Disable Device Reviews


Good to go!

Reviewed By Taylor S (AUSTIN, AR) Reviewed for a 2011 GMC Sierra —3/11/2015 9:20 PM

I've had the range AFM disabler for my 2011 GMC Sierra for about a month now. Works as advertised. Haven't noticed any problems out of it. Made the driving experience much more enjoyable. Would recommend to others.

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Hypertech Max Energy Programmer Reviews


Daily driver that needed a little more pick up

Reviewed By Thomas B (FLORENCE, AL) Reviewed for a 2011 GMC Sierra —11/27/2014 4:28 PM

I got this to add that little extra to my truck, running the premium tune (92octane) I can tell a quicker pick up on acceleration. Fuel miles you won't really tell a huge differance until you run it on the highway, there you can tell both increased HP when passing and better Econ in the higher speeds. Overall happy.

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Bully Dog Triple Dog GT Tuner (49-State Legal) 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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