Parts & Accessories Spare parts 2007 Sierra 2007 Without double There are scattered sprays The gearbox and engine are guaranteed Mileage 400 thousand I just did an engine tune-up and it doesn't complain about anything The car is good for going and traveling, and everything is fine The engine does not lose oil or overheat Additions * Corsa muffler Chip tuning Decoupling programming and increased torque Bed liner Gear cooler