There were about 3 PCM updates. The latest and greatest download will contain all the previous flash improvements. The latest bulletin is 18-021-13 for derated power over 55 mph at WOT after start up: Anyone familiar with this TSB? [Archive] - Dodge Charger Forums (at http://www.chargerforums.com/forums/archive/index.php/t-233786.html ) Here is the low speed bucking improvement bulletin 18-006-10C: Chrysler Workshop Manuals > Aspen 2WD V8-5.7L (2007) > Powertrain Management > Computers and Control Systems > Engine Control Module > Component Information > Technical Service Bulletins > All Technical Service Bulletins for Engine Control Module: > 18-006-10C > Oct > 10 > Engine Controls - MDS Driveability Improvements (at http://workshop-manuals.com/chrysler/aspen_2wd/v8-5.7l/powertrain_management/computers_and_control_systems/engine_control_module/component_information/technical_service_bulletins/all_technical_service_bulletins_for_engine_control_module/18-006-10c/oct/10/engine_controls_mds_driveability_improvements/ ) There may be other update for other modules like instrument cluster and HVAC controls, etc. Some may have already been done. The dealer can tell you what modules have updates. It is best to do them all at once while the tool is connected to the car.