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GMC Sierra Performance Chips & Programmers

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Latest Customer Reviews

SCT X4 Power Flash Programmer (49-State Legal) Reviews


SCT X4 tuner 2011 Sierra 6.2L

Reviewed By Joseph R (Killeen, TX) Reviewed for a 2011 GMC Sierra —4/27/2016 9:30 PM

Noticeable HP & torque gains with 93 octane stock tune Increase MPG from 12.3mpg to 17.5mpg highway Would recommend to anyone Mods- Gibson shorty headers, Brisk USA LGS spark plugs, Granatelli wires, custom header back exhaust, Flowmaster super 10 muffler, K&N Blackhawk CAI, and SCT Tuner with custom tune Next on the wish list is a supercharger or pro charger Little pricey but worth the $$ Can't go wrong with SCT

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Range Active Fuel Management Disable Device Reviews


AFM disable

Reviewed By Christopher T (baltimore, MD) Reviewed for a 2008 GMC Sierra —4/19/2016 4:03 AM

Works as described

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TruXP Xtune Performance Tuner Reviews


Great!

Reviewed By Samuel V (CARTHAGE, TX) Reviewed for a 2006 GMC Sierra —4/17/2016 11:19 PM

Does what it says but no more, over all satisfied

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