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GMC Sierra 2008 - 2013

About :

Chiptuning-FILE is the best tuning server on the web for gmc sierra tuning files. all gmc tuning files are custom made and thoroughly tested on a 4x4 dynometer. the development of each gmc tuning file is the result of perfection and dedication by our programmers. many tuners in the world are working on Chiptuning-FILE because they are trusting our result.

STAGE 1
STAGE 2
DPF OFF
EGR OFF
DECAT
ORIGIN
326 Hp 472 Nm
CHIPTUNING
345 HP 495 Nm
DIFFERENCE
+19 HP +23 Nm