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:

    Electronic Brake Force Distribution (EBD) system
    The EBD system maximizes the effectiveness of the brakes by allowing the rear brakes to supply a greater proportion of the braking force. It functions by adjusting the distribution of braking force to ...

    P (Park)
    This position is for parking the vehicle and starting the engine. In this position, the transmission is mechanically locked to prevent the vehicle from rolling freely. When you park the vehicle, fir ...

    New Designs for 2011
    In front, the 2011 WRX STI models feature sharpened bumper corners and wider, blacked-out fog lamp nacelles to accentuate the "wide and low" profile. A jutting lip spoiler with three-dim ...