An​‍​‌‍​‍‌​‍​‌‍​‍‌ STI spoiler is a precision aero device made for Subaru Tecnica International (STI) cars to help vehicle stay stable and be more manageable. Made of light stuff like carbon fiber or aluminum, it raises downforce at very high speeds, thus the grip and the handling are better. The STI spoiler is a drag reducer also, thus the air flow is smoother and the vehicle is more... https://www.ultrex.com.au/