Z71 2013 Automatic Gasoline mileage: 1 KM 4WD For sale: Sierra with 6.2 aluminum engine. Body is fully agency✅ All windows are agency✅ Bumpers and grille are original✅ Chassis is agency✅ Airbags are agency✅ 4WD with differential lock✅ Regarding the engine: 6.2 aluminum, fitted with Texas Speed Stage 2 camshaft. Texas Speed double springs. Denali oil pump. LS3 823 heads. The engine was overhauled a little over a year ago and fully checked, and it's in good condition. The car is clean, with modified and heat-insulated spark plug wires. Insulated wiring harness, and it needs nothing✅ It was recently tuned and achieved a very good number. Additions: 40,000 BTU transmission cooler. Motorad thermostat. Full air intake system. Volant intake. Blitz filter head. Headers and Y-pipe. B&M electronic shifter with its controller. Catch can. Wideband. ABS and airbag sensors. Wired for Kenwood. Inspected and renewed✅ The engine, praise be to God, is clean and has no smoke or overheating issues. Oil is changed every 2500 kilometers. For sale to the highest bidder. Only serious buyers should contact me to save time. The sale is easy, and I will not disagree with the serious buyer, God willing.