2007-2009 GM Chevrolet 5.3L LS4 Car AFM DOD Delete Disable KitThis kit includes everything needed to delete AFM DOD (Active Fuel Management) from GM 5. 3L LS4 engines. VIN fitment: 8th Digit="C". Once installed, AFM will need to be disabled within your computer. We offer out mail in tuning reflash or Diablosport handhelds. Kit Contents GM Single Bolt Cam for use w OEM Valve Springs works with or without VVT Your Choice of Lifters Chevrolet Lifter Guides Head Gasket Set w GM OEM MLS head gaskets Set includes