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2011 GMC Sierra Performance Chips & Programmers

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Latest Customer Reviews

Range Active Fuel Management Disable Device Reviews

Must have for AFM engines

Reviewed By Pete S (Taylorville, IL) Reviewed for a 2011 GMC Sierra —10/4/2016 8:48 AM

I installed this on my 2011 GMC Sierra and have noticed a huge increase in throttle response, power, and fuel economy. I'm getting close to 60 miles more per tank than I was before disabling the AFM.

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Hypertech Max Energy Programmer Reviews

Bill's z71

Reviewed By Bill H (Ponchatoula, LA) Reviewed for a 2011 GMC Sierra —5/13/2016 6:27 AM

So far I like the performance but really didn't get a fuel mileage increase and also needs some better instructions on how to adjust all the settings. For example how to adjust shift points for certain program's

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Hypertech Max Energy 2.0 Programmer Reviews

great product.

Reviewed By Jordan T (MEDFORD, OR) Reviewed for a 2011 GMC Sierra —11/18/2015 8:13 PM

Super easy to use. Noticeable gains in power and fuel economy.

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