Recommended shifting speeds
The best compromise between fuel economy and vehicle performance during normal driving is ensured by shifting up at the speeds listed in the following table.

See also:
2011 Subaru Impreza WRX STi review
Driving the 2011 Subaru Impreza WRX STi transported me to a world that was
completely foreign. It's a world that's less centered on booster seats and
storage cubbies and more focused on rally raci ...
To arm the system using remote transmitter
1. Close all windows.
2. Remove the key from the ignition switch.
3. Open the doors and get out of the vehicle.
4. Make sure that the engine hood (and the trunk lid on the 4-door) are locked.
5. C ...
MUTE button (if equipped)
Press this button if you wish to immediately cut the volume to zero.
The audio display will show “MUTE”. If you press the button again, the original
sound volume will return and “MUTE” turns off. ...
