Hypertech 62001 Max Energy Power Programmer for 2004-2011 Nissan/Infiniti 5.6L Engines and 2005-2009 Nissan 4.0L Engines Power tuning for regular, premium and E-85/Flex fuel vehicles Adjustable top speed limiter and engine rev limiter (not available on all vehicles) On/Off throttle restriction control Internet updateable Specific features like Power Tuning, Top-Speed Limiter, Speedometer Calibrator, Cooling Fan "On/Off" Temperatures, Return to stock or change option settings, Automatic Transmission Adjustments and few more for your make, model and year