GMC Sierra Z71 2012 Used Automatic Gasoline mileage: 289 KM 4WD GMC Sierra 2012, double gear. Equipped with a turbo. Produces 580 horsepower. 6.0 engine. The car has 290 mileage. Equipped with a 76 turbo. And Precision wastegate. And a 3-inch intercooler. And full custom headers from Al-Safdi. Quiet sound muffler. And it has a 40,000 BTU Trucool transmission cooler. HD body, original paint. Contact via call only.