GMC Sierra SLT 2013 Automatic Gasoline mileage: 300 KM or more Sierra model 13, full option, silver color Double gear Modified with the latest version Bullet muffler And it has a tune for cutting electricity, sputtering, open throttle, pedal response, and an increase of 50 horsepower Mileage 430 thousand Gear and engine are guaranteed Airbags are guaranteed There is fading in the left corner, which is a manufacturing defect, and the fading is not significant I want to trade for a Taurus model 23 and above For contact: ( Phone number appears when clicking the contact button )