Hypertech 63001 Max Energy E-CON Economy Power Programmer for 2004-2009 Nissan/Infiniti 5.6L Engines and 2005-2009 Nissan 4.0L Engines Power tuning for regular and E-85/Flex fuel vehicles Reads and clears Diagnostic Trouble Codes (DTC's) Internet updateable Upgradeable to Max Energy programmer Specific features for your make, model and year: engine tuning, diagnostics, internet updateable and return to stock