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GMC Sierra Power Programmers & Performance Tuners

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Latest Customer Reviews

Range Active Fuel Management Disable Device Reviews


GM AFM is the WORST!

Reviewed By Joe S (BROKEN ARROW, OK) Reviewed for a 2012 GMC Sierra —3/1/2015 4:44 PM

Purchase this device and never look back. As I conducted by research, it was mentioned that there were problems with draining of the battery and an annoying blue light. I haven't encountered either. Yes, there is a faint blue light under steering wheel, but really not a problem, for me at least. The device does what it specifies. No more V8...V4...V8 nonsense. V8 all the time, and as far as gas mileage reduction/increase, my observations are...there isn't any. Purchase this and never look back.

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DiabloSport inTune I-1000 Tuner Reviews


Great seller

Reviewed By nicholas w (Lancaster, SC) Reviewed for a 2009 GMC Sierra —1/20/2015 1:46 AM

Great product

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Hypertech Max Energy Programmer Reviews


great programer

Reviewed By John W (Havre De Grace, MD) Reviewed for a 2013 GMC Sierra —1/10/2015 1:52 PM

Great for larger tires for speedometer and extra power to turn them.

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