FITMENT - 2010-2015 for Chevrolet Express 2500,2010-2015 for Chevrolet Express 3500,2010-2015 for Chevrolet Express 4500,2011-2015 for Chevrolet Silverado 2500 HD,2011-2015 for Chevrolet Silverado 3500 HD,2010-2015 for GMC Savana 2500,2010-2014 for GMC Savana 3500,2010-2015 for GMC Savana 4500,2011-2015 for GMC Sierra 2500 HD,2011-2015 for GMC Sierra 3500 HD. Before installation - When installing the air flow meter, in addition to turning off the vehicle, the negative wire of the car battery needs to be tear down to ensure that the vehicle circuit is powered off (such as pressing the steering wheel horn and no sound, indicating that the body power supply is disconnected), and reset Perform installation operations after ECU data, otherwise failures and fault codes are prone to appear..
