Non-turbo models

The engine is designed to operate using unleaded gasoline with an octane rating of 87 AKI (90 RON) or higher.

    See also:

    ABS warning light
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    MUTE button (models without Hands-free system)
    Press the “” 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 o ...

    New Chassis Tuning for 2011
    The Subaru Impreza WRX STI was already a highly optimized performance machine. Specific chassis tuning. Aluminum front lower L-arms reduce unsprung vehicle weight. Major chassis tuning changes inc ...