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2012 GMC Sierra Performance Monitors

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Latest Customer Reviews

DiabloSport inTune i2 Tuner Reviews


i2 tuner

Reviewed By John J (LOCKPORT, IL) Reviewed for a 2012 GMC Sierra —12/5/2016 12:21 PM

This was my first time using a tuner and it was very easy to use and certainly made a difference in performance.

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Edge Evolution CTS2 Programmer Reviews


Easy to install simple to use

Reviewed By james b (Ashville, AL) Reviewed for a 2012 GMC Sierra —6/27/2016 2:49 AM

Haven't seen a major power difference but has definitely improved fuel economy. Only problem I've had with it is it has froze up on me twice.

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


BULLY DOG

Reviewed By JON L (WILLISTON, ND) Reviewed for a 2012 GMC Sierra —2/9/2013 8:51 AM

NOTICED MORE TOP END, SMOOTHER SHIFT AT HIGH SPEEDS,NOT MUCH FOR MPG THANKS SHANNA

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