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2012 GMC Sierra Performance Chips & Programmers

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Latest Customer Reviews

Range Active Fuel Management Disable Device Reviews


Does what it says it will do.

Reviewed By jay b (Norman, OK) Reviewed for a 2012 GMC Sierra —9/28/2017 10:51 AM

I plugged this in and it deactivated the AFM on my 2012 GMC Sierra.

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DiabloSport inTune i2 Tuner Reviews


Works great

Reviewed By Kevan C (Hagerstown, MD) Reviewed for a 2012 GMC Sierra —7/5/2017 2:02 PM

Bought a pre-owned Sierra 1500 with the Vortec 6200 where the previous "computer" calculated MPG was 10.2 average. I cleared the computer, installed the MPG default tune with firm shift. With 2 tanks of regular 87 octane I now get overall "computer" average of 16.7. I will hand calculate at next fill-up.

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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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