* In case of the vehicles equipped with pedestrian protection airbag.Īero parts enhance straight-drivability of the car by suppressing air turbulence spread outward from the underbody. Such a detailed setting is possible only because STI can directly work with SUBARU in the development of our parts. For example, a structure which does not activate the pedestrian protection airbag* sensor by installing the STI front under spoiler is required. In developing aero parts, we keep in mind that they should never interfere with sensors and other functions of the original SUBARU car, in addition to improving the appearance and performance. Taking feedback from motor sports participation into consideration, development activities start with product planning, go through analyses, and finally the actual designing takes place.Īfter designing, prototyping and driving evaluation tests including driving on snow and wind tunnel tests are repeated for more than a year to verify the performance before the parts are commercialized for the public. Not only the appearance but the development focuses also on some other key points such as not letting the wind hit the tires and rectifying airflow not to let it in the wheel houses by controlling the flow rate and pressure. STI develops function-oriented aero parts with streamlined shapes and a stylish design, taking advantage of the direct relationship with SUBARU. To create stylish and high-performance parts, STI carries out many development activities, analyses and tests.
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