2019 GMC Sierra AT4 gets new Off-Road Performance Package

GMC is giving its Sierra AT4 truck more performance with a new Off-Road Performance package option. The Off-Road Performance Package AT4 includes a 6.2L V8 engine and 10-speed automatic transmission. The truck comes with 18-inch machined wheels with Goodyear Wrangler DuraTrac tires. GMC equips the performance package with a cat-back performance exhaust system and a […](Read More ...)The post 2019 GMC Sierra AT4 gets new Off-Road Performance Package appeared first on Geeky Gadgets.