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2009 GMC Sierra Performance Chips & Programmers

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Latest Customer Reviews

Bully Dog GT Platinum Tuner (49-State Legal) Reviews


Can tell a difference

Reviewed By damon s (HENRYVILLE, IN) Reviewed for a 2009 GMC Sierra —11/22/2017 5:50 AM

Missed out on AutoAnything $50 rebate by 4 days:(! Make sure to have battery booster just in case. Bullydog updater not compatible with Mac, took multiple attempts to get the new download to the microSD card or for the pc to recognize the card.

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DiabloSport inTune i2 Tuner Reviews


Just what the Dr. Ordered

Reviewed By scott w (Edmond, OK) Reviewed for a 2009 GMC Sierra —9/7/2017 8:41 PM

I needed the Diablosport tuner to turn off my obnoxious AFM, and it did as promised. It also delivered harder shifts and more power even in the mildest tune. The surprise was that my Sierra now has an extra 30 minutes of highway range due to more MPG.

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Range Active Fuel Management Disable Device Reviews


Works as advertised

Reviewed By Clayton U (HUNTSVILLE, AL) Reviewed for a 2009 GMC Sierra —5/18/2016 6:29 AM

Works as listed. Easy to plug into service port. Engine seems to run smoother especially when shifting at slow speeds. Have not noticed any appreciable difference in MPG. Also have not noticed any battery drain by leaving it plugged in.

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