Description:

FITMENT - 2008-2009 for Chevrolet Express 2500 6.6L,2008-2009 for Chevrolet Express 3500 6.6L,2009 for Chevrolet Express 4500 6.6L,2007-2010 for Chevrolet Silverado 2500 HD 6.6L,2007-2010 for Chevrolet Silverado 3500 HD 6.6L,2008-2009 for GMC Savana 2500 6.6L,2008-2009 for GMC Savana 3500 6.6L,2009 for GMC Savana 4500 6.6L,2007-2010 for GMC Sierra 2500 HD 6.6L,2007-2010 for GMC Sierra 3500 HD 6.6L. EASY to INSTALL and CLEAN - Disconnect the negative side of the battery, then loosen a couple band clamps and disconnect the harness. Pull out your old unit and re-insert new one, tighten band clamps, re-connect harness and negative battery terminal. HOW to WORK - Mass Air Flow Meter AFM Sensor measures the volume and density of air entering the engine, providing highly accurate Air Flow readings to the ECU over a wide range of ambient temperatures..