To add to Gregger's post, EFI models (some 2008's, 2009, 2010) require software on your laptop plus OBDII cable to synchronize the throttle bodies, clear & read computer codes.
The fuel pump and fuel filter is inside the fuel tank, and the entire assembly has to be removed from the tank to service.
Other than that, EFI models run smooth, easy to start, and are more efficient. Maximum torque on the EFI models is ~1300 RPM lower than the carb models at 3300 rpm. Much more tractable lower down.
HTH,
H.
