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GMC Sierra Power Programmers & Performance Tuners

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Latest Customer Reviews

Range Active Fuel Management Disable Device Reviews


A true perfection

Reviewed By Charles S (Walterboro, SC) Reviewed for a 2015 GMC Sierra —7/7/2017 8:36 PM

GM could not solve my idle speed issues and always said OK. After a near catastrophic crash when the motor quit during an interstate rapid stop at 70 mph I decided to fix the problem on my own. This device WORKS! Also increased my gas mileage over 1 mpg. BUY IT!

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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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Hypertech Max Energy 2.0 Programmer Reviews


2014 GMC OIL SAVER

Reviewed By George C (ROANOKE RAPIDS, NC) Reviewed for a 2014 GMC Sierra —5/24/2017 7:40 AM

I bought the Max 2.0 because other reviews had said their trucks had stopped using oil when the 4cyl program had been turned off. I have run this program now for close to a thousand miles and haven't used any oil with the engine running on 8 cyl all the time. Gas mileage has remained about the same as before, I haven't noticed any problems with the Max 2.0 programmer. My 2014 GMC sierra has a lot more horse power running this programmer .

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