Filed under: GMC,Truck,Off-Road It comes with a cat-back exhaust and performance intake.
Continue reading GMC introduces off-road performance package for Sierra AT4GMC introduces off-road performance package for Sierra AT4 originally appeared on Autoblog on Tue, or 18 Dec 2018 07:45:00 EST. Please see our terms for consume of feeds.
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Source: autoblog.com