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2009 GMC Sierra Power Programmers & Performance Tuners

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Latest Customer Reviews

DiabloSport PC Interface - USB Cable Kit Reviews


Great buy

Reviewed By Kolton B (LEVELLAND, TX) Reviewed for a 2009 GMC Sierra —7/19/2016 11:58 PM

Got here extremely fast, works excellent.

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


Bullydog tuner

Reviewed By Stephan T (SAINT AUGUSTINE, FL) Reviewed for a 2009 GMC Sierra —3/23/2016 7:04 AM

What can I say; love this thing. Already had single in dual out magnaflow exhaust. Bought the tuner along with a cold air intake and it's like driving a differant truck. Installation is a little time consuming, but follow directions closely and it's not that bad. Shipping was fast as well.

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